fix(HttpClient): take Uri by value in request() to prevent dangling reference

The coroutine suspends at co_await, so a const-ref to a temporary Uri
would dangle. Take by value like the download() overloads already do.

.github/actions/spell-check/allow/code.txt

@@ -38,7 +38,6 @@ Gbps
 gcode
 Heatshrink
 Mbits
-Kbits
 MBs
 mkv
 msix
@@ -98,7 +97,6 @@ Yubico
 Perplexity
 Groq
 svgl
-devhome
 
 # KEYS
 
@@ -324,7 +322,6 @@ REGSTR
 
 # Misc Win32 APIs and PInvokes
 INVOKEIDLIST
-MEMORYSTATUSEX
 
 # PowerRename metadata pattern abbreviations (used in tests and regex patterns)
 DDDD
@@ -345,7 +342,3 @@ reportbug
 #ffmpeg
 crf
 nostdin
-
-# Performance counter keys
-engtype
-Nonpaged

.github/actions/spell-check/allow/names.txt

@@ -192,7 +192,6 @@ ycv
 yeelam
 Yuniardi
 yuyoyuppe
-zadjii
 Zeol
 Zhao
 Zhaopeng
@@ -229,7 +228,6 @@ regedit
 roslyn
 Skia
 Spotify
-taskmgr
 tldr
 Vanara
 wangyi
@@ -245,3 +243,4 @@ xamlstyler
 Xavalon
 Xbox
 Youdao
+zadjii

.github/actions/spell-check/excludes.txt

@@ -111,7 +111,6 @@
 ^src/modules/cmdpal/ext/SamplePagesExtension/Pages/SampleMarkdownImagesPage\.cs$
 ^src/modules/cmdpal/Microsoft\.CmdPal\.UI/Settings/InternalPage\.SampleData\.cs$
 ^src/modules/cmdpal/Tests/Microsoft\.CmdPal\.Core\.Common\.UnitTests/.*\.TestData\.cs$
-^src/modules/cmdpal/Tests/Microsoft\.CmdPal\.Core\.Common\.UnitTests/Text/.*\.cs$
 ^src/modules/colorPicker/ColorPickerUI/Shaders/GridShader\.cso$
 ^src/modules/launcher/Plugins/Microsoft\.PowerToys\.Run\.Plugin\.TimeDate/Properties/
 ^src/modules/MouseUtils/MouseJumpUI/MainForm\.resx$

.github/actions/spell-check/expect.txt

@@ -197,7 +197,6 @@ Canvascustomlayout
 CAPTUREBLT
 CAPTURECHANGED
 CARETBLINKING
-carlos
 Carlseibert
 CAtl
 caub
@@ -218,7 +217,6 @@ certmgr
 cfp
 CHANGECBCHAIN
 changecursor
-chatasweetie
 checkmarks
 CHILDACTIVATE
 CHILDWINDOW
@@ -1529,7 +1527,6 @@ randi
 RAquadrant
 rasterization
 Rasterize
-rasterizing
 RAWINPUTDEVICE
 RAWINPUTHEADER
 RAWMODE
@@ -2244,7 +2241,6 @@ YSpeed
 YStr
 YTimer
 YVIRTUALSCREEN
-zamora
 ZEROINIT
 zonability
 zonable

Cpp.Build.props

@@ -64,7 +64,6 @@
       <TreatWarningAsError>true</TreatWarningAsError>
       <LanguageStandard>stdcpplatest</LanguageStandard>
       <BuildStlModules>false</BuildStlModules>
-      <AdditionalOptions>/await %(AdditionalOptions)</AdditionalOptions>
       <!-- TODO: _SILENCE_STDEXT_ARR_ITERS_DEPRECATION_WARNING for compatibility with VS 17.8. Check if we can remove. -->
       <PreprocessorDefinitions>_SILENCE_STDEXT_ARR_ITERS_DEPRECATION_WARNING;_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <!-- CLR + CFG are not compatible >:{ -->

Directory.Packages.props

@@ -77,10 +77,10 @@
     <PackageVersion Include="Microsoft.Windows.CsWinRT" Version="2.2.0" />
     <PackageVersion Include="Microsoft.Windows.ImplementationLibrary" Version="1.0.231216.1"/>
     <PackageVersion Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.26100.6901" />
-    <PackageVersion Include="Microsoft.WindowsAppSDK" Version="1.8.260209005" />
-    <PackageVersion Include="Microsoft.WindowsAppSDK.Foundation" Version="1.8.260203002" />
-    <PackageVersion Include="Microsoft.WindowsAppSDK.AI" Version="1.8.47" />
-    <PackageVersion Include="Microsoft.WindowsAppSDK.Runtime" Version="1.8.260209005" />
+    <PackageVersion Include="Microsoft.WindowsAppSDK" Version="1.8.251106002" />
+    <PackageVersion Include="Microsoft.WindowsAppSDK.Foundation" Version="1.8.251104000" />
+    <PackageVersion Include="Microsoft.WindowsAppSDK.AI" Version="1.8.39" />
+    <PackageVersion Include="Microsoft.WindowsAppSDK.Runtime" Version="1.8.251106002" />
     <PackageVersion Include="Microsoft.Xaml.Behaviors.WinUI.Managed" Version="2.0.9" />
     <PackageVersion Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.39" />
     <PackageVersion Include="ModernWpfUI" Version="0.9.4" />

PowerToys.slnx

@@ -219,10 +219,6 @@
       <Platform Solution="*|x64" Project="x64" />
       <Deploy />
     </Project>
-    <Project Path="src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PerformanceMonitor/Microsoft.CmdPal.Ext.PerformanceMonitor.csproj">
-      <Platform Solution="*|ARM64" Project="ARM64" />
-      <Platform Solution="*|x64" Project="x64" />
-    </Project>
     <Project Path="src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PowerToys/Microsoft.CmdPal.Ext.PowerToys.csproj">
       <Platform Solution="*|ARM64" Project="ARM64" />
       <Platform Solution="*|x64" Project="x64" />

README.md

@@ -103,38 +103,10 @@ There are <a href="https://learn.microsoft.com/windows/powertoys/install#communi
 </details>
 
 ## ✨ What's new
-
-**Version 0.97.2 (Feb 2026)**
+**Version 0.97.1 (January 2026)**
 
 This patch release fixes several important stability issues identified in v0.97.0 based on incoming reports. Check out the [v0.97.0](https://github.com/microsoft/PowerToys/releases/tag/v0.97.0) notes for the full list of changes.
 
-## Advanced Paste
-- #45207 Fixed a crash in the Advanced Paste settings page caused by null values during JSON deserialization.
-
-## Color Picker
-- #45367 Fixed contrast issue in Color picker UI.
-
-## Command Palette
-- #45194 Fixed an issue where some Command Palette PowerToys Extension strings were not localised.
-
-## Cursor Wrap
-- #45210 Fixed "Automatically activate on utility startup" setting not persisting when disabled. Thanks [@ThanhNguyxn](https://github.com/ThanhNguyxn)!
-- #45303 Added option to disable Cursor Wrapping when only a single monitor is connected. Thanks [@mikehall-ms](https://github.com/mikehall-ms)!
-
-## Image Resizer
-- #45184 Fixed Image Resizer not working after upgrading PowerToys on Windows 10 by properly cleaning up legacy sparse app packages.
-
-## LightSwitch
-- #45304 Fixed Light Switch startup logic to correctly apply the appropriate theme on launch.
-
-## Workspaces
-- #45183 Fixed overlay positioning issue in workspace snapshot draw caused by DPI-aware coordinate mismatch.
-
-## Quick Access and Measure Tool
-- #45443 Fixed crash related to `IsShownInSwitchers` property when Explorer is not running.
-
-**Version 0.97.1 (January 2026)**
-
 **Highlights**
 
 ### Advanced Paste

doc/devdocs/events.md

@@ -1,197 +0,0 @@
-# Telemetry Events
-
-PowerToys collects limited telemetry to understand feature usage, reliability, and product quality. When adding a new telemetry event, follow the steps below to ensure the event is properly declared, documented, and available after release.
-
-**⚠️ Important**: Telemetry must never include personal information, file paths, or user‑generated content.
-
-## Developer Effort Overview (What to Expect)
-
-Adding a telemetry event is a **multi-step process** that typically spans several areas of the codebase and documentation.
-
-At a high level, developers should expect to:
-
-1. Within one PR:
-    1. Add a new telemetry event(s) to module
-    1. Add the new event(s) DATA_AND_PRIVACY.md
-1. Reach out to @carlos-zamora or @chatasweetie so internal scripts can process new event(s)
-
-### Privacy Guidelines
-
-**NEVER** log:
-
-- User data (text, files, emails, etc.)
-- File paths or filenames
-- Personal information
-- Sensitive system information
-- Anything that could identify a specific user
-
-DO log:
-
-- Feature usage (which features, how often)
-- Success/failure status
-- Timing/performance metrics
-- Error types (not error messages with user data)
-- Aggregate counts
-
-### Event Naming Convention
-
-Follow this pattern: `UtilityName_EventDescription`
-
-Examples:
-
-- `ColorPicker_Session`
-- `FancyZones_LayoutApplied`
-- `PowerRename_Rename`
-- `AdvancedPaste_FormatClicked`
-- `CmdPal_ExtensionInvoked`
-
-## Adding Telemetry Events to PowerToys
-
-PowerToys uses ETW (Event Tracing for Windows) for telemetry in both C++ and C# modules. The telemetry system is:
-
-- Opt-in by default (disabled since v0.86)
-- Privacy-focused - never logs personal info, file paths, or user-generated content
-- Controlled by registry - HKEY_CURRENT_USER\Software\Classes\PowerToys\AllowDataDiagnostics
-
-### C++ Telemetry Implementation
-
-**Core Components**
-
-| File  | Purpose |
-| ------------- |:-------------:|
-| [ProjectTelemetry.h](../../src/common/Telemetry/ProjectTelemetry.h)    | Declares the global ETW provider g_hProvider     |
-| [TraceBase.h](../../src/common/Telemetry/TraceBase.h)      | Base class with RegisterProvider(), UnregisterProvider(), and IsDataDiagnosticsEnabled() check     |
-| [TraceLoggingDefines.h](../../src/common/Telemetry/TraceLoggingDefines.h)      | Privacy tags and telemetry option group macros
-
-
-#### Pattern for C++ Modules
-
-1. Create a `Trace` class inheriting from `telemetry::TraceBase` (src/common/Telemetry/TraceBase.h):
-
-    ```c
-    // trace.h
-    #pragma once
-    #include <common/Telemetry/TraceBase.h>
-    
-    class Trace : public telemetry::TraceBase
-    {
-    public:
-        static void MyEvent(/* parameters */);
-    };
-    ```
-
-2. Implement events using `TraceLoggingWriteWrapper`:
-
-    ```cpp
-    // trace.cpp
-    #include "trace.h"
-    #include <common/Telemetry/TraceBase.h>
-    
-    TRACELOGGING_DEFINE_PROVIDER(
-        g_hProvider,
-        "Microsoft.PowerToys",
-        (0x38e8889b, 0x9731, 0x53f5, 0xe9, 0x01, 0xe8, 0xa7, 0xc1, 0x75, 0x30, 0x74),
-        TraceLoggingOptionProjectTelemetry());
-    
-    void Trace::MyEvent(bool enabled)
-    {
-        TraceLoggingWriteWrapper(
-            g_hProvider,
-            "ModuleName_EventName",           // Event name
-            TraceLoggingBoolean(enabled, "Enabled"),  // Event data
-            ProjectTelemetryPrivacyDataTag(ProjectTelemetryTag_ProductAndServicePerformance),
-            TraceLoggingBoolean(TRUE, "UTCReplace_AppSessionGuid"),
-            TraceLoggingKeyword(PROJECT_KEYWORD_MEASURE));
-    }
-    ```
-
-**Key C++ Telemetry Macros**
-
-| Macro  | Purpose |
-| ------------- |:-------------:|
-| `TraceLoggingWriteWrapper` [CustomAction.cpp](../../installer/PowerToysSetupCustomActionsVNext/CustomAction.cpp)     | Wraps `TraceLoggingWrite` with `IsDataDiagnosticsEnabled()` check     |
-| `ProjectTelemetryPrivacyDataTag(tag)` [TraceLoggingDefines.h](../../src/common/Telemetry/TraceLoggingDefines.h)     | Sets privacy classification |
-
-### C# Telemetry Implementation
-
-**Core Components**
-
-| File  | Purpose |
-| ------------- |:-------------:|
-| [PowerToysTelemetry.cs](../../src/common/ManagedTelemetry/Telemetry/PowerToysTelemetry.cs)    | Singleton `Log` instance with `WriteEvent<T>()` method     |
-| [EventBase.cs](../../src/common/ManagedTelemetry/Telemetry/Events/EventBase.cs)      | Base class for all events (provides `EventName`, `Version`)     |
-| [IEvent.cs](../../src/common/ManagedTelemetry/Telemetry/Events/IEvent.cs)     | Interface requiring `PartA_PrivTags` property     |
-| [TelemetryBase.cs](../../src/common/Telemetry/TelemetryBase.cs)     | 	Inherits from `EventSource`, defines ETW constants     |
-| [DataDiagnosticsSettings.cs](../../src/common/ManagedTelemetry/Telemetry/DataDiagnosticsSettings.cs)     | Registry-based enable/disable check 
-
-#### Pattern for C# Modules
-
-1. Create an event class inheriting from `EventBase` and implementing `IEvent`:
-
-    ```csharp
-    using System.Diagnostics.CodeAnalysis;
-    using System.Diagnostics.Tracing;
-    using Microsoft.PowerToys.Telemetry;
-    using Microsoft.PowerToys.Telemetry.Events;
-    
-    namespace MyModule.Telemetry
-    {
-        [EventData]
-        [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicProperties)]
-        public class MyModuleEvent : EventBase, IEvent
-        {
-            // Event properties (logged as telemetry data)
-            public string SomeProperty { get; set; }
-            public int SomeValue { get; set; }
-    
-            // Required: Privacy tag
-            public PartA_PrivTags PartA_PrivTags => PartA_PrivTags.ProductAndServiceUsage;
-    
-            // Optional: Set EventName in constructor (defaults to class name)
-            public MyModuleEvent(string prop, int val)
-            {
-                EventName = "MyModule_EventName";
-                SomeProperty = prop;
-                SomeValue = val;
-            }
-        }
-    }
-    ```
-
-2. Log the event:
-
-```csharp
-PowerToysTelemetry.Log.WriteEvent(new MyModuleEvent("value", 42));
-```
-
-**Privacy Tags (C#)**
-
-| Tag  | Use Case |
-| ------------- |:-------------:|
-| `PartA_PrivTags.ProductAndServiceUsage`  [TelemetryBase.cs](../../src/common/Telemetry/TelemetryBase.cs)     | Feature usage events
-| `PartA_PrivTags.ProductAndServicePerformance` [TelemetryBase.cs](../../src/common/Telemetry/TelemetryBase.cs)     | Performance/timing events
-  
-### Update DATA_AND_PRIVACY.md file
-
-Add your new event(s) to [DATA_AND_PRIVACY.md](../../DATA_AND_PRIVACY.md).
-
-## Launch Product Version Containing the new events
-
-Events do not become active until they ship in a released PowerToys version. After your PRs are merged:
-
-- The event will begin firing once users install the version that includes it
-- In order for PowerToys to process these events, you must complete the next section
-
-## Next Steps
-
-Reach out to @carlos-zamora or @chatasweetie so internal scripts can process new event(s).
-
-## Summary
-
-Required steps:
-
-1. In one PR:
-    - Add the event(s) in code
-    - Document event(s) in DATA_AND_PRIVACY.md
-1. Ship the change in a PowerToys release
-1. Reach out for next steps

installer/PowerToysSetupCustomActionsVNext/PowerToysSetupCustomActionsVNext.vcxproj

@@ -88,7 +88,7 @@
   <ItemDefinitionGroup>
     <ClCompile>
       <AdditionalIncludeDirectories>inc;..\..\src\;..\..\src\common\Telemetry;telemetry;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <AdditionalOptions>/await /Zc:twoPhase- /Wv:18 %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions>/Zc:twoPhase- /Wv:18 %(AdditionalOptions)</AdditionalOptions>
       <WarningLevel>Level4</WarningLevel>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>

src/Update/PowerToys.Update.cpp

@@ -57,7 +57,7 @@ std::optional<fs::path> ObtainInstaller(bool& isUpToDate)
 
     auto state = UpdateState::read();
 
-    const auto new_version_info = get_github_version_info_async().get();
+    const auto new_version_info = std::move(get_github_version_info_async()).get();
     if (std::holds_alternative<version_up_to_date>(*new_version_info))
     {
         isUpToDate = true;
@@ -76,7 +76,7 @@ std::optional<fs::path> ObtainInstaller(bool& isUpToDate)
         // Cleanup old updates before downloading the latest
         updating::cleanup_updates();
 
-        auto downloaded_installer = download_new_version(std::get<new_version_download_info>(*new_version_info)).get();
+        auto downloaded_installer = std::move(download_new_version_async(std::get<new_version_download_info>(*new_version_info))).get();
         if (!downloaded_installer)
         {
             Logger::error("Couldn't download new installer");

src/common/LanguageModelProvider/FoundryLocalModelProvider.cs

@@ -34,7 +34,8 @@ public sealed class FoundryLocalModelProvider : ILanguageModelProvider
         }
 
         // Check if model is in catalog
-        if (!EnsureModelInCatalog(modelId))
+        var isInCatalog = _catalogModels?.Any(m => m.Name == modelId) ?? false;
+        if (!isInCatalog)
         {
             var errorMessage = $"{modelId} is not supported in Foundry Local. Please configure supported models in Settings.";
             Logger.LogError($"[FoundryLocal] {errorMessage}");
@@ -42,28 +43,15 @@ public sealed class FoundryLocalModelProvider : ILanguageModelProvider
         }
 
         // Ensure the model is loaded before returning chat client
-        var isLoaded = EnsureModelLoadedWithRefresh(modelId);
+        var isLoaded = _foundryClient!.EnsureModelLoaded(modelId).GetAwaiter().GetResult();
         if (!isLoaded)
         {
             Logger.LogError($"[FoundryLocal] Failed to load model: {modelId}");
             throw new InvalidOperationException($"Failed to load the model '{modelId}'.");
         }
 
-        var client = _foundryClient;
-        if (client == null)
-        {
-            const string message = "Foundry Local client could not be created. Please make sure Foundry Local is installed and running.";
-            Logger.LogError($"[FoundryLocal] {message}");
-            throw new InvalidOperationException(message);
-        }
-
         // Use ServiceUri instead of Endpoint since Endpoint already includes /v1
-        var baseUri = client.GetServiceUri();
-        if (baseUri == null && TryRefreshClient("Service URI was not available"))
-        {
-            baseUri = _foundryClient?.GetServiceUri();
-        }
-
+        var baseUri = _foundryClient.GetServiceUri();
         if (baseUri == null)
         {
             const string message = "Foundry Local service URL is not available. Please make sure Foundry Local is installed and running.";
@@ -136,7 +124,6 @@ public sealed class FoundryLocalModelProvider : ILanguageModelProvider
         if (_foundryClient != null && _catalogModels != null && _catalogModels.Any())
         {
             await _foundryClient.EnsureRunning().ConfigureAwait(false);
-            _serviceUrl = await _foundryClient.GetServiceUrl().ConfigureAwait(false);
             return;
         }
 
@@ -166,75 +153,4 @@ public sealed class FoundryLocalModelProvider : ILanguageModelProvider
         Logger.LogInfo($"[FoundryLocal] Available: {available}");
         return available;
     }
-
-    private bool EnsureModelInCatalog(string modelId)
-    {
-        var isInCatalog = _catalogModels?.Any(m => m.Name == modelId) ?? false;
-        if (isInCatalog)
-        {
-            return true;
-        }
-
-        Logger.LogWarning($"[FoundryLocal] Model not found in catalog. Refreshing client for model: {modelId}");
-        if (!TryRefreshClient("Model not in catalog"))
-        {
-            return false;
-        }
-
-        return _catalogModels?.Any(m => m.Name == modelId) ?? false;
-    }
-
-    private bool EnsureModelLoadedWithRefresh(string modelId)
-    {
-        var isLoaded = false;
-
-        try
-        {
-            isLoaded = _foundryClient!.EnsureModelLoaded(modelId).GetAwaiter().GetResult();
-        }
-        catch (Exception ex)
-        {
-            Logger.LogWarning($"[FoundryLocal] EnsureModelLoaded failed: {ex.Message}");
-        }
-
-        if (isLoaded)
-        {
-            return true;
-        }
-
-        if (!TryRefreshClient("EnsureModelLoaded failed"))
-        {
-            return false;
-        }
-
-        try
-        {
-            return _foundryClient!.EnsureModelLoaded(modelId).GetAwaiter().GetResult();
-        }
-        catch (Exception ex)
-        {
-            Logger.LogError($"[FoundryLocal] EnsureModelLoaded failed after refresh: {ex.Message}", ex);
-            return false;
-        }
-    }
-
-    private bool TryRefreshClient(string reason)
-    {
-        Logger.LogInfo($"[FoundryLocal] Refreshing Foundry Local client: {reason}");
-
-        try
-        {
-            _foundryClient = null;
-            _catalogModels = null;
-            _serviceUrl = null;
-
-            InitializeAsync().GetAwaiter().GetResult();
-            return _foundryClient != null;
-        }
-        catch (Exception ex)
-        {
-            Logger.LogError($"[FoundryLocal] Failed to refresh Foundry Local client: {ex.Message}", ex);
-            return false;
-        }
-    }
 }

src/common/updating/installer.cpp

@@ -18,7 +18,7 @@ namespace // Strings in this namespace should not be localized
 
 namespace updating
 {
-    std::future<bool> uninstall_previous_msix_version_async()
+    winrt::Windows::Foundation::IAsyncOperation<bool> uninstall_previous_msix_version_async()
     {
         winrt::Windows::Management::Deployment::PackageManager package_manager;
 

src/common/updating/installer.h

@@ -2,11 +2,11 @@
 
 #include <string>
 #include <optional>
-#include <future>
 
+#include <winrt/Windows.Foundation.h>
 #include <common/version/helper.h>
 
 namespace updating
 {
-    std::future<bool> uninstall_previous_msix_version_async();
-}
+    winrt::Windows::Foundation::IAsyncOperation<bool> uninstall_previous_msix_version_async();
+}

src/common/updating/pch.h

@@ -33,6 +33,7 @@
 #include <winrt/Windows.System.h>
 
 #include <wil/resource.h>
+#include <wil/coroutine.h>
 
 #endif //PCH_H
 

src/common/updating/updating.cpp

@@ -82,11 +82,7 @@ namespace updating
 // prevent the warning that may show up depend on the value of the constants (#defines)
 #pragma warning(push)
 #pragma warning(disable : 4702)
-#if USE_STD_EXPECTED
-    std::future<std::expected<github_version_info, std::wstring>> get_github_version_info_async(const bool prerelease)
-#else
-    std::future<nonstd::expected<github_version_info, std::wstring>> get_github_version_info_async(const bool prerelease)
-#endif
+    wil::task<github_version_result> get_github_version_info_async(const bool prerelease)
     {
         // If the current version starts with 0.0.*, it means we're on a local build from a farm and shouldn't check for updates.
         if constexpr (VERSION_MAJOR == 0 && VERSION_MINOR == 0)
@@ -170,7 +166,7 @@ namespace updating
         return !ec ? std::optional{ installer_download_path } : std::nullopt;
     }
 
-    std::future<std::optional<std::filesystem::path>> download_new_version(const new_version_download_info& new_version)
+    wil::task<std::optional<std::filesystem::path>> download_new_version_async(new_version_download_info new_version)
     {
         auto installer_download_path = create_download_path();
         if (!installer_download_path)

src/common/updating/updating.h

@@ -2,7 +2,6 @@
 
 #include <optional>
 #include <string>
-#include <future>
 #include <filesystem>
 #include <variant>
 #include <winrt/Windows.Foundation.h>
@@ -16,6 +15,7 @@
 #endif
 
 #include <common/version/helper.h>
+#include <wil/coroutine.h>
 
 namespace updating
 {
@@ -32,13 +32,15 @@ namespace updating
     };
     using github_version_info = std::variant<new_version_download_info, version_up_to_date>;
 
-    std::future<std::optional<std::filesystem::path>> download_new_version(const new_version_download_info& new_version);
-    std::filesystem::path get_pending_updates_path();
 #if USE_STD_EXPECTED
-    std::future<std::expected<github_version_info, std::wstring>> get_github_version_info_async(const bool prerelease = false);
+    using github_version_result = std::expected<github_version_info, std::wstring>;
 #else
-    std::future<nonstd::expected<github_version_info, std::wstring>> get_github_version_info_async(const bool prerelease = false);
+    using github_version_result = nonstd::expected<github_version_info, std::wstring>;
 #endif
+
+    wil::task<github_version_result> get_github_version_info_async(bool prerelease = false);
+    wil::task<std::optional<std::filesystem::path>> download_new_version_async(new_version_download_info new_version);
+    std::filesystem::path get_pending_updates_path();
     void cleanup_updates();
 
     // non-localized

src/common/utils/HttpClient.h

@@ -1,6 +1,7 @@
 #pragma once
 
-#include <future>
+#include <functional>
+#include <string>
 #include <winrt/Windows.Foundation.h>
 #include <winrt/Windows.Storage.Streams.h>
 #include <winrt/Windows.Web.Http.h>
@@ -21,15 +22,15 @@ namespace http
             headers.UserAgent().TryParseAdd(USER_AGENT);
         }
 
-        std::future<std::wstring> request(const winrt::Windows::Foundation::Uri& url)
+        winrt::Windows::Foundation::IAsyncOperation<winrt::hstring> request(winrt::Windows::Foundation::Uri url)
         {
             auto response = co_await m_client.GetAsync(url);
             (void)response.EnsureSuccessStatusCode();
             auto body = co_await response.Content().ReadAsStringAsync();
-            co_return std::wstring(body);
+            co_return body;
         }
 
-        std::future<void> download(const winrt::Windows::Foundation::Uri& url, const std::wstring& dstFilePath)
+        winrt::Windows::Foundation::IAsyncAction download(winrt::Windows::Foundation::Uri url, std::wstring dstFilePath)
         {
             auto response = co_await m_client.GetAsync(url);
             (void)response.EnsureSuccessStatusCode();
@@ -38,7 +39,7 @@ namespace http
             file_stream.Close();
         }
 
-        std::future<void> download(const winrt::Windows::Foundation::Uri& url, const std::wstring& dstFilePath, const std::function<void(float)>& progressUpdateCallback)
+        winrt::Windows::Foundation::IAsyncAction download(winrt::Windows::Foundation::Uri url, std::wstring dstFilePath, std::function<void(float)> progressUpdateCallback)
         {
             auto response = co_await m_client.GetAsync(url, HttpCompletionOption::ResponseHeadersRead);
             response.EnsureSuccessStatusCode();

src/modules/EnvironmentVariables/EnvironmentVariables/EnvironmentVariablesXAML/MainWindow.xaml

@@ -21,9 +21,13 @@
             <RowDefinition Height="*" />
         </Grid.RowDefinitions>
         <TitleBar x:Name="titleBar" IsTabStop="False">
-            <TitleBar.IconSource>
-                <ImageIconSource ImageSource="/Assets/EnvironmentVariables/EnvironmentVariables.ico" />
-            </TitleBar.IconSource>
+            <!--  This is a workaround for https://github.com/microsoft/microsoft-ui-xaml/issues/10374, once fixed we should just be using IconSource  -->
+            <TitleBar.LeftHeader>
+                <ImageIcon
+                    Height="16"
+                    Margin="16,0,0,0"
+                    Source="/Assets/EnvironmentVariables/EnvironmentVariables.ico" />
+            </TitleBar.LeftHeader>
         </TitleBar>
     </Grid>
 </winuiex:WindowEx>

src/modules/EnvironmentVariables/EnvironmentVariables/EnvironmentVariablesXAML/MainWindow.xaml.cs

@@ -27,8 +27,8 @@ namespace EnvironmentVariables
 
             ExtendsContentIntoTitleBar = true;
             SetTitleBar(titleBar);
-            AppWindow.SetIcon("Assets/EnvironmentVariables/EnvironmentVariables.ico");
 
+            AppWindow.SetIcon("Assets/EnvironmentVariables/EnvironmentVariables.ico");
             var loader = ResourceLoaderInstance.ResourceLoader;
             var title = App.GetService<IElevationHelper>().IsElevated ? loader.GetString("WindowAdminTitle") : loader.GetString("WindowTitle");
 

src/modules/FileLocksmith/FileLocksmithUI/FileLocksmithXAML/MainWindow.xaml

@@ -21,9 +21,13 @@
             <RowDefinition Height="*" />
         </Grid.RowDefinitions>
         <TitleBar x:Name="titleBar" IsTabStop="False">
-            <TitleBar.IconSource>
-                <ImageIconSource ImageSource="/Assets/FileLocksmith/Icon.ico" />
-            </TitleBar.IconSource>
+            <!--  This is a workaround for https://github.com/microsoft/microsoft-ui-xaml/issues/10374, once fixed we should just be using IconSource  -->
+            <TitleBar.LeftHeader>
+                <ImageIcon
+                    Height="16"
+                    Margin="16,0,0,0"
+                    Source="/Assets/FileLocksmith/Icon.ico" />
+            </TitleBar.LeftHeader>
         </TitleBar>
         <views:MainPage x:Name="mainPage" Grid.Row="1" />
     </Grid>

src/modules/Hosts/Hosts/HostsXAML/MainWindow.xaml

@@ -21,9 +21,13 @@
             <RowDefinition Height="*" />
         </Grid.RowDefinitions>
         <TitleBar x:Name="titleBar" IsTabStop="False">
-            <TitleBar.IconSource>
-                <ImageIconSource ImageSource="/Assets/Hosts/Hosts.ico" />
-            </TitleBar.IconSource>
+            <!--  This is a workaround for https://github.com/microsoft/microsoft-ui-xaml/issues/10374, once fixed we should just be using IconSource  -->
+            <TitleBar.LeftHeader>
+                <ImageIcon
+                    Height="16"
+                    Margin="16,0,0,0"
+                    Source="/Assets/Hosts/Hosts.ico" />
+            </TitleBar.LeftHeader>
         </TitleBar>
     </Grid>
 </winuiex:WindowEx>

src/modules/Workspaces/WorkspacesLauncher/WorkspacesLauncher.vcxproj

@@ -13,7 +13,6 @@
       <ConformanceMode>false</ConformanceMode>
       <TreatWarningAsError>true</TreatWarningAsError>
       <LanguageStandard>stdcpplatest</LanguageStandard>
-      <AdditionalOptions>/await %(AdditionalOptions)</AdditionalOptions>
       <PreprocessorDefinitions>_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>

src/modules/Workspaces/WorkspacesSnapshotTool/WorkspacesSnapshotTool.vcxproj

@@ -13,7 +13,6 @@
       <ConformanceMode>false</ConformanceMode>
       <TreatWarningAsError>true</TreatWarningAsError>
       <LanguageStandard>stdcpplatest</LanguageStandard>
-      <AdditionalOptions>/await %(AdditionalOptions)</AdditionalOptions>
       <PreprocessorDefinitions>_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>

src/modules/Workspaces/WorkspacesWindowArranger/WorkspacesWindowArranger.vcxproj

@@ -13,7 +13,6 @@
       <ConformanceMode>false</ConformanceMode>
       <TreatWarningAsError>true</TreatWarningAsError>
       <LanguageStandard>stdcpplatest</LanguageStandard>
-      <AdditionalOptions>/await %(AdditionalOptions)</AdditionalOptions>
       <PreprocessorDefinitions>_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>

src/modules/ZoomIt/ZoomIt/Zoomit.cpp

@@ -5140,7 +5140,7 @@ bool IsPenInverted( WPARAM wParam )
 // Captures the specified screen using the capture APIs
 //
 //----------------------------------------------------------------------------
-std::future<winrt::com_ptr<ID3D11Texture2D>> CaptureScreenshotAsync(winrt::IDirect3DDevice const& device, winrt::GraphicsCaptureItem const& item, winrt::DirectXPixelFormat const& pixelFormat)
+wil::task<winrt::com_ptr<ID3D11Texture2D>> CaptureScreenshotAsync(winrt::IDirect3DDevice const& device, winrt::GraphicsCaptureItem const& item, winrt::DirectXPixelFormat const& pixelFormat)
 {
     auto d3dDevice = GetDXGIInterfaceFromObject<ID3D11Device>(device);
     winrt::com_ptr<ID3D11DeviceContext> d3dContext;
@@ -5176,9 +5176,7 @@ std::future<winrt::com_ptr<ID3D11Texture2D>> CaptureScreenshotAsync(winrt::IDire
     framePool.Close();
 
     auto texture = GetDXGIInterfaceFromObject<ID3D11Texture2D>(frame.Surface());
-    auto result = util::CopyD3DTexture(d3dDevice, texture, true);
-
-    co_return result;
+    co_return util::CopyD3DTexture(d3dDevice, texture, true);
 }
 
 //----------------------------------------------------------------------------
@@ -5205,10 +5203,7 @@ winrt::com_ptr<ID3D11Texture2D>CaptureScreenshot(winrt::DirectXPixelFormat const
 
     auto item = util::CreateCaptureItemForMonitor(hMon);
 
-    auto capture = CaptureScreenshotAsync(device, item, pixelFormat);
-    capture.wait();
-
-    return capture.get();
+    return CaptureScreenshotAsync(device, item, pixelFormat).get();
 }
 
 

src/modules/ZoomIt/ZoomIt/pch.h

@@ -69,6 +69,7 @@
 // WIL
 #include <wil/com.h>
 #include <wil/resource.h>
+#include <wil/coroutine.h>
 
 // DirectX
 #include <d3d11_4.h>

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/AppPackagingFlavor.cs

@@ -1,26 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common;
-
-/// <summary>
-/// Represents the packaging flavor of the application.
-/// </summary>
-public enum AppPackagingFlavor
-{
-    /// <summary>
-    /// Application is packaged as a Windows MSIX package.
-    /// </summary>
-    Packaged,
-
-    /// <summary>
-    /// Application is running unpackaged (native executable).
-    /// </summary>
-    Unpackaged,
-
-    /// <summary>
-    /// Application is running as unpackaged portable (self-contained distribution).
-    /// </summary>
-    UnpackagedPortable,
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Helpers/IPrecomputedListItem.cs

@@ -1,27 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using Microsoft.CmdPal.Core.Common.Text;
-
-namespace Microsoft.CmdPal.Core.Common.Helpers;
-
-/// <summary>
-/// Represents an item that can provide precomputed fuzzy matching targets for its title and subtitle.
-/// </summary>
-public interface IPrecomputedListItem
-{
-    /// <summary>
-    /// Gets the fuzzy matching target for the item's title.
-    /// </summary>
-    /// <param name="matcher">The precomputed fuzzy matcher used to build the target.</param>
-    /// <returns>The fuzzy target for the title.</returns>
-    FuzzyTarget GetTitleTarget(IPrecomputedFuzzyMatcher matcher);
-
-    /// <summary>
-    /// Gets the fuzzy matching target for the item's subtitle.
-    /// </summary>
-    /// <param name="matcher">The precomputed fuzzy matcher used to build the target.</param>
-    /// <returns>The fuzzy target for the subtitle.</returns>
-    FuzzyTarget GetSubtitleTarget(IPrecomputedFuzzyMatcher matcher);
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Helpers/InternalListHelpers.cs

@@ -1,142 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Buffers;
-using System.Diagnostics;
-using Microsoft.CmdPal.Core.Common.Text;
-
-namespace Microsoft.CmdPal.Core.Common.Helpers;
-
-public static partial class InternalListHelpers
-{
-    public static RoScored<T>[] FilterListWithScores<T>(
-        IEnumerable<T>? items,
-        in FuzzyQuery query,
-        in ScoringFunction<T> scoreFunction)
-    {
-        if (items == null)
-        {
-            return [];
-        }
-
-        // Try to get initial capacity hint
-        var initialCapacity = items switch
-        {
-            ICollection<T> col => col.Count,
-            IReadOnlyCollection<T> rc => rc.Count,
-            _ => 64,
-        };
-
-        var buffer = ArrayPool<RoScored<T>>.Shared.Rent(initialCapacity);
-        var count = 0;
-
-        try
-        {
-            foreach (var item in items)
-            {
-                var score = scoreFunction(in query, item);
-                if (score <= 0)
-                {
-                    continue;
-                }
-
-                if (count == buffer.Length)
-                {
-                    GrowBuffer(ref buffer, count);
-                }
-
-                buffer[count++] = new RoScored<T>(item, score);
-            }
-
-            Array.Sort(buffer, 0, count, default(RoScoredDescendingComparer<T>));
-            var result = GC.AllocateUninitializedArray<RoScored<T>>(count);
-            buffer.AsSpan(0, count).CopyTo(result);
-            return result;
-        }
-        finally
-        {
-            ArrayPool<RoScored<T>>.Shared.Return(buffer);
-        }
-    }
-
-    private static void GrowBuffer<T>(ref RoScored<T>[] buffer, int count)
-    {
-        var newBuffer = ArrayPool<RoScored<T>>.Shared.Rent(buffer.Length * 2);
-        buffer.AsSpan(0, count).CopyTo(newBuffer);
-        ArrayPool<RoScored<T>>.Shared.Return(buffer);
-        buffer = newBuffer;
-    }
-
-    public static T[] FilterList<T>(IEnumerable<T> items, in FuzzyQuery query, ScoringFunction<T> scoreFunction)
-    {
-        // Try to get initial capacity hint
-        var initialCapacity = items switch
-        {
-            ICollection<T> col => col.Count,
-            IReadOnlyCollection<T> rc => rc.Count,
-            _ => 64,
-        };
-
-        var buffer = ArrayPool<RoScored<T>>.Shared.Rent(initialCapacity);
-        var count = 0;
-
-        try
-        {
-            foreach (var item in items)
-            {
-                var score = scoreFunction(in query, item);
-                if (score <= 0)
-                {
-                    continue;
-                }
-
-                if (count == buffer.Length)
-                {
-                    GrowBuffer(ref buffer, count);
-                }
-
-                buffer[count++] = new RoScored<T>(item, score);
-            }
-
-            Array.Sort(buffer, 0, count, default(RoScoredDescendingComparer<T>));
-
-            var result = GC.AllocateUninitializedArray<T>(count);
-            for (var i = 0; i < count; i++)
-            {
-                result[i] = buffer[i].Item;
-            }
-
-            return result;
-        }
-        finally
-        {
-            ArrayPool<RoScored<T>>.Shared.Return(buffer);
-        }
-    }
-
-    private readonly struct RoScoredDescendingComparer<T> : IComparer<RoScored<T>>
-    {
-        public int Compare(RoScored<T> x, RoScored<T> y) => y.Score.CompareTo(x.Score);
-    }
-}
-
-public delegate int ScoringFunction<in T>(in FuzzyQuery query, T item);
-
-[DebuggerDisplay($"{{{nameof(GetDebuggerDisplay)}(),nq}}")]
-public readonly struct RoScored<T>
-{
-    public readonly int Score;
-    public readonly T Item;
-
-    public RoScored(T item, int score)
-    {
-        Score = score;
-        Item = item;
-    }
-
-    private string GetDebuggerDisplay()
-    {
-        return "Score = " + Score + ", Item = " + Item;
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Helpers/VersionHelper.cs

@@ -1,87 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Diagnostics;
-using Windows.ApplicationModel;
-
-namespace Microsoft.CmdPal.Core.Common.Helpers;
-
-/// <summary>
-/// Helper class for retrieving application version information safely.
-/// </summary>
-internal static class VersionHelper
-{
-    /// <summary>
-    /// Gets the application version as a string in the format "Major.Minor.Build.Revision".
-    /// Falls back to assembly version if packaged version is unavailable, and returns a default value if both fail.
-    /// </summary>
-    /// <returns>The application version string, or a fallback value if retrieval fails.</returns>
-    public static string GetAppVersionSafe()
-    {
-        if (TryGetPackagedVersion(out var version))
-        {
-            return version;
-        }
-
-        if (TryGetAssemblyVersion(out version))
-        {
-            return version;
-        }
-
-        return "?";
-    }
-
-    /// <summary>
-    /// Attempts to retrieve the application version from the package manifest.
-    /// </summary>
-    /// <param name="version">The version string if successful, or an empty string if unsuccessful.</param>
-    /// <returns>True if the version was retrieved successfully; otherwise, false.</returns>
-    private static bool TryGetPackagedVersion(out string version)
-    {
-        version = string.Empty;
-        try
-        {
-            // Package.Current throws InvalidOperationException if the app is not packaged
-            var v = Package.Current.Id.Version;
-            version = $"{v.Major}.{v.Minor}.{v.Build}.{v.Revision}";
-            return true;
-        }
-        catch (InvalidOperationException)
-        {
-            return false;
-        }
-        catch (Exception ex)
-        {
-            CoreLogger.LogError("Failed to get version from the package", ex);
-            return false;
-        }
-    }
-
-    /// <summary>
-    /// Attempts to retrieve the application version from the executable file.
-    /// </summary>
-    /// <param name="version">The version string if successful, or an empty string if unsuccessful.</param>
-    /// <returns>True if the version was retrieved successfully; otherwise, false.</returns>
-    private static bool TryGetAssemblyVersion(out string version)
-    {
-        version = string.Empty;
-        try
-        {
-            var processPath = Environment.ProcessPath;
-            if (string.IsNullOrEmpty(processPath))
-            {
-                return false;
-            }
-
-            var info = FileVersionInfo.GetVersionInfo(processPath);
-            version = $"{info.FileMajorPart}.{info.FileMinorPart}.{info.FileBuildPart}.{info.FilePrivatePart}";
-            return true;
-        }
-        catch (Exception ex)
-        {
-            CoreLogger.LogError("Failed to get version from the executable", ex);
-            return false;
-        }
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Services/ApplicationInfoService.cs

@@ -1,125 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Globalization;
-using System.Runtime.InteropServices;
-using System.Security.Principal;
-using Microsoft.CmdPal.Core.Common.Helpers;
-using Microsoft.CommandPalette.Extensions.Toolkit;
-using Windows.ApplicationModel;
-
-namespace Microsoft.CmdPal.Core.Common.Services;
-
-/// <summary>
-/// Implementation of IApplicationInfoService providing application-wide information.
-/// </summary>
-public sealed class ApplicationInfoService : IApplicationInfoService
-{
-    private readonly Lazy<string> _configDirectory = new(() => Utilities.BaseSettingsPath("Microsoft.CmdPal"));
-    private readonly Lazy<bool> _isElevated;
-    private readonly Lazy<string> _logDirectory;
-    private readonly Lazy<AppPackagingFlavor> _packagingFlavor;
-    private Func<string>? _getLogDirectory;
-
-    /// <summary>
-    /// Initializes a new instance of the <see cref="ApplicationInfoService"/> class.
-    /// The log directory delegate can be set later via <see cref="SetLogDirectory(Func{string})"/>.
-    /// </summary>
-    public ApplicationInfoService()
-    {
-        _packagingFlavor = new Lazy<AppPackagingFlavor>(DeterminePackagingFlavor);
-        _isElevated = new Lazy<bool>(DetermineElevationStatus);
-        _logDirectory = new Lazy<string>(() => _getLogDirectory?.Invoke() ?? "Not available");
-    }
-
-    /// <summary>
-    /// Initializes a new instance of the <see cref="ApplicationInfoService"/> class with an optional log directory provider.
-    /// </summary>
-    /// <param name="getLogDirectory">Optional delegate to retrieve the log directory path. If not provided, the log directory will be unavailable.</param>
-    public ApplicationInfoService(Func<string>? getLogDirectory)
-        : this()
-    {
-        _getLogDirectory = getLogDirectory;
-    }
-
-    /// <summary>
-    /// Sets the log directory delegate to be used for retrieving the log directory path.
-    /// This allows deferred initialization of the logger path.
-    /// </summary>
-    /// <param name="getLogDirectory">Delegate to retrieve the log directory path.</param>
-    public void SetLogDirectory(Func<string> getLogDirectory)
-    {
-        ArgumentNullException.ThrowIfNull(getLogDirectory);
-        _getLogDirectory = getLogDirectory;
-    }
-
-    public string AppVersion => VersionHelper.GetAppVersionSafe();
-
-    public AppPackagingFlavor PackagingFlavor => _packagingFlavor.Value;
-
-    public string LogDirectory => _logDirectory.Value;
-
-    public string ConfigDirectory => _configDirectory.Value;
-
-    public bool IsElevated => _isElevated.Value;
-
-    public string GetApplicationInfoSummary()
-    {
-        return $"""
-                Application:
-                  App version:           {AppVersion}
-                  Packaging flavor:      {PackagingFlavor}
-                  Is elevated:           {(IsElevated ? "yes" : "no")}
-
-                Environment:
-                  OS version:            {RuntimeInformation.OSDescription}
-                  OS architecture:       {RuntimeInformation.OSArchitecture}
-                  Runtime identifier:    {RuntimeInformation.RuntimeIdentifier}
-                  Framework:             {RuntimeInformation.FrameworkDescription}
-                  Process architecture:  {RuntimeInformation.ProcessArchitecture}
-                  Culture:               {CultureInfo.CurrentCulture.Name}
-                  UI culture:            {CultureInfo.CurrentUICulture.Name}
-
-                Paths:
-                  Log directory:         {LogDirectory}
-                  Config directory:      {ConfigDirectory}
-                """;
-    }
-
-    private static AppPackagingFlavor DeterminePackagingFlavor()
-    {
-        // Try to determine if running as packaged
-        try
-        {
-            // If this doesn't throw, we're packaged
-            _ = Package.Current.Id.Version;
-            return AppPackagingFlavor.Packaged;
-        }
-        catch (InvalidOperationException)
-        {
-            // Not packaged, check if portable
-            // For now, we don't support portable yet, so return Unpackaged
-            // In the future, check for a marker file or environment variable
-            return AppPackagingFlavor.Unpackaged;
-        }
-        catch (Exception ex)
-        {
-            CoreLogger.LogError("Failed to determine packaging flavor", ex);
-            return AppPackagingFlavor.Unpackaged;
-        }
-    }
-
-    private static bool DetermineElevationStatus()
-    {
-        try
-        {
-            var isElevated = new WindowsPrincipal(WindowsIdentity.GetCurrent()).IsInRole(WindowsBuiltInRole.Administrator);
-            return isElevated;
-        }
-        catch (Exception)
-        {
-            return false;
-        }
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Services/IApplicationInfoService.cs

@@ -1,49 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Services;
-
-/// <summary>
-/// Provides access to application-wide information such as version, packaging flavor, and directory paths.
-/// </summary>
-public interface IApplicationInfoService
-{
-    /// <summary>
-    /// Gets the application version as a string in the format "Major.Minor.Build.Revision".
-    /// </summary>
-    string AppVersion { get; }
-
-    /// <summary>
-    /// Gets the packaging flavor of the application.
-    /// </summary>
-    AppPackagingFlavor PackagingFlavor { get; }
-
-    /// <summary>
-    /// Gets the directory path where application logs are stored.
-    /// </summary>
-    string LogDirectory { get; }
-
-    /// <summary>
-    /// Gets the directory path where application configuration files are stored.
-    /// </summary>
-    string ConfigDirectory { get; }
-
-    /// <summary>
-    /// Gets a value indicating whether the application is running with administrator privileges.
-    /// </summary>
-    bool IsElevated { get; }
-
-    /// <summary>
-    /// Gets a formatted summary of application information suitable for logging.
-    /// </summary>
-    /// <returns>A formatted string containing application information.</returns>
-    string GetApplicationInfoSummary();
-
-    /// <summary>
-    /// Sets the log directory delegate to be used for retrieving the log directory path.
-    /// This allows deferred initialization of the logger path.
-    /// </summary>
-    /// <param name="getLogDirectory">Delegate to retrieve the log directory path.</param>
-    void SetLogDirectory(Func<string> getLogDirectory);
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Services/Reports/ErrorReportBuilder.cs

@@ -2,27 +2,20 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System.Globalization;
 using System.Runtime.InteropServices;
+using System.Security.Principal;
 using Microsoft.CmdPal.Core.Common.Services.Sanitizer;
+using Windows.ApplicationModel;
 
 namespace Microsoft.CmdPal.Core.Common.Services.Reports;
 
 public sealed class ErrorReportBuilder : IErrorReportBuilder
 {
     private readonly ErrorReportSanitizer _sanitizer = new();
-    private readonly IApplicationInfoService _appInfoService;
 
     private static string Preamble => Properties.Resources.ErrorReport_Global_Preamble;
 
-    /// <summary>
-    /// Initializes a new instance of the <see cref="ErrorReportBuilder"/> class.
-    /// </summary>
-    /// <param name="appInfoService">Optional application info service. If not provided, a default instance is created.</param>
-    public ErrorReportBuilder(IApplicationInfoService? appInfoService = null)
-    {
-        _appInfoService = appInfoService ?? new ApplicationInfoService(null);
-    }
-
     public string BuildReport(Exception exception, string context, bool redactPii = true)
     {
         ArgumentNullException.ThrowIfNull(exception);
@@ -31,9 +24,6 @@ public sealed class ErrorReportBuilder : IErrorReportBuilder
         var sanitizedMessage = redactPii ? _sanitizer.Sanitize(exceptionMessage) : exceptionMessage;
         var sanitizedFormattedException = redactPii ? _sanitizer.Sanitize(exception.ToString()) : exception.ToString();
 
-        var applicationInfoSummary = GetAppInfoSafe();
-        var applicationInfoSummarySanitized = redactPii ? _sanitizer.Sanitize(applicationInfoSummary) : applicationInfoSummary;
-
         // Note:
         // - do not localize technical part of the report, we need to ensure it can be read by developers
         // - keep timestamp format should be consistent with the log (makes it easier to search)
@@ -48,7 +38,18 @@ public sealed class ErrorReportBuilder : IErrorReportBuilder
                   HRESULT:               0x{exception.HResult:X8} ({exception.HResult})
                   Context:               {context ?? "N/A"}
 
-                {applicationInfoSummarySanitized}
+                Application:
+                  App version:           {GetAppVersionSafe()}
+                  Is elevated:           {GetElevationStatus()}
+
+                Environment:
+                  OS version:            {RuntimeInformation.OSDescription}
+                  OS architecture:       {RuntimeInformation.OSArchitecture}
+                  Runtime identifier:    {RuntimeInformation.RuntimeIdentifier}
+                  Framework:             {RuntimeInformation.FrameworkDescription}
+                  Process architecture:  {RuntimeInformation.ProcessArchitecture}
+                  Culture:               {CultureInfo.CurrentCulture.Name}
+                  UI culture:            {CultureInfo.CurrentUICulture.Name}
 
                 Stack Trace:
                 {exception.StackTrace}
@@ -65,17 +66,31 @@ public sealed class ErrorReportBuilder : IErrorReportBuilder
                 """;
     }
 
-    private string? GetAppInfoSafe()
+    private static string GetElevationStatus()
     {
+        // Note: do not localize technical part of the report, we need to ensure it can be read by developers
         try
         {
-            return _appInfoService.GetApplicationInfoSummary();
+            var isElevated = new WindowsPrincipal(WindowsIdentity.GetCurrent()).IsInRole(WindowsBuiltInRole.Administrator);
+            return isElevated ? "yes" : "no";
         }
-        catch (Exception ex)
+        catch (Exception)
         {
-            // Getting application info should never throw, but if it does, we don't want it to prevent the report from being generated
-            var message = CoalesceExceptionMessage(ex);
-            return $"Failed to get application info summary: {message}";
+            return "Failed to determine elevation status";
+        }
+    }
+
+    private static string GetAppVersionSafe()
+    {
+        // Note: do not localize technical part of the report, we need to ensure it can be read by developers
+        try
+        {
+            var version = Package.Current.Id.Version;
+            return $"{version.Major}.{version.Minor}.{version.Build}.{version.Revision}";
+        }
+        catch (Exception)
+        {
+            return "Failed to retrieve app version";
         }
     }
 

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/BloomFilter.cs

@@ -1,40 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.CompilerServices;
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public sealed class BloomFilter : IBloomFilter
-{
-    public ulong Compute(string input)
-    {
-        ulong bloom = 0;
-
-        foreach (var ch in input)
-        {
-            if (SymbolClassifier.Classify(ch) == SymbolKind.WordSeparator)
-            {
-                continue;
-            }
-
-            var h = (uint)ch * 0x45d9f3b;
-            bloom |= 1UL << (int)(h & 31);
-            bloom |= 1UL << (int)(((h >> 16) & 31) + 32);
-
-            if (bloom == ulong.MaxValue)
-            {
-                break;
-            }
-        }
-
-        return bloom;
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public bool MightContain(ulong candidateBloom, ulong queryBloom)
-    {
-        return (candidateBloom & queryBloom) == queryBloom;
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/FuzzyMatcherProvider.cs

@@ -1,52 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Globalization;
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public sealed class FuzzyMatcherProvider : IFuzzyMatcherProvider
-{
-    private readonly IBloomFilter _bloomCalculator = new BloomFilter();
-    private readonly IStringFolder _normalizer = new StringFolder();
-
-    private IPrecomputedFuzzyMatcher _current;
-
-    public FuzzyMatcherProvider(PrecomputedFuzzyMatcherOptions core, PinyinFuzzyMatcherOptions? pinyin = null)
-    {
-        _current = CreateMatcher(core, pinyin);
-    }
-
-    public IPrecomputedFuzzyMatcher Current => Volatile.Read(ref _current);
-
-    public void UpdateSettings(PrecomputedFuzzyMatcherOptions core, PinyinFuzzyMatcherOptions? pinyin = null)
-    {
-        Volatile.Write(ref _current, CreateMatcher(core, pinyin));
-    }
-
-    private IPrecomputedFuzzyMatcher CreateMatcher(PrecomputedFuzzyMatcherOptions core, PinyinFuzzyMatcherOptions? pinyin)
-    {
-        return pinyin is null || !IsPinyinEnabled(pinyin)
-            ? new PrecomputedFuzzyMatcher(core, _normalizer, _bloomCalculator)
-            : new PrecomputedFuzzyMatcherWithPinyin(core, pinyin, _normalizer, _bloomCalculator);
-    }
-
-    private static bool IsPinyinEnabled(PinyinFuzzyMatcherOptions o)
-    {
-        return o.Mode switch
-        {
-            PinyinMode.Off => false,
-            PinyinMode.On => true,
-            PinyinMode.AutoSimplifiedChineseUi => IsSimplifiedChineseUi(),
-            _ => false,
-        };
-    }
-
-    private static bool IsSimplifiedChineseUi()
-    {
-        var culture = CultureInfo.CurrentUICulture;
-        return culture.Name.StartsWith("zh-CN", StringComparison.OrdinalIgnoreCase)
-               || culture.Name.StartsWith("zh-Hans", StringComparison.OrdinalIgnoreCase);
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/FuzzyQuery.cs

@@ -1,65 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public readonly struct FuzzyQuery
-{
-    public readonly string Original;
-
-    public readonly string Folded;
-
-    public readonly ulong Bloom;
-
-    public readonly int EffectiveLength;
-
-    public readonly bool IsAllLowercaseAsciiOrNonLetter;
-
-    public readonly string? SecondaryOriginal;
-
-    public readonly string? SecondaryFolded;
-
-    public readonly ulong SecondaryBloom;
-
-    public readonly int SecondaryEffectiveLength;
-
-    public readonly bool SecondaryIsAllLowercaseAsciiOrNonLetter;
-
-    public int Length => Folded.Length;
-
-    public bool HasSecondary => SecondaryFolded is not null;
-
-    public ReadOnlySpan<char> OriginalSpan => Original.AsSpan();
-
-    public ReadOnlySpan<char> FoldedSpan => Folded.AsSpan();
-
-    public ReadOnlySpan<char> SecondaryOriginalSpan => SecondaryOriginal.AsSpan();
-
-    public ReadOnlySpan<char> SecondaryFoldedSpan => SecondaryFolded.AsSpan();
-
-    public FuzzyQuery(
-        string original,
-        string folded,
-        ulong bloom,
-        int effectiveLength,
-        bool isAllLowercaseAsciiOrNonLetter,
-        string? secondaryOriginal = null,
-        string? secondaryFolded = null,
-        ulong secondaryBloom = 0,
-        int secondaryEffectiveLength = 0,
-        bool secondaryIsAllLowercaseAsciiOrNonLetter = true)
-    {
-        Original = original;
-        Folded = folded;
-        Bloom = bloom;
-        EffectiveLength = effectiveLength;
-        IsAllLowercaseAsciiOrNonLetter = isAllLowercaseAsciiOrNonLetter;
-
-        SecondaryOriginal = secondaryOriginal;
-        SecondaryFolded = secondaryFolded;
-        SecondaryBloom = secondaryBloom;
-        SecondaryEffectiveLength = secondaryEffectiveLength;
-        SecondaryIsAllLowercaseAsciiOrNonLetter = secondaryIsAllLowercaseAsciiOrNonLetter;
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/FuzzyTarget.cs

@@ -1,46 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public readonly struct FuzzyTarget
-{
-    public readonly string Original;
-    public readonly string Folded;
-    public readonly ulong Bloom;
-
-    public readonly string? SecondaryOriginal;
-    public readonly string? SecondaryFolded;
-    public readonly ulong SecondaryBloom;
-
-    public int Length => Folded.Length;
-
-    public bool HasSecondary => SecondaryFolded is not null;
-
-    public int SecondaryLength => SecondaryFolded?.Length ?? 0;
-
-    public ReadOnlySpan<char> OriginalSpan => Original.AsSpan();
-
-    public ReadOnlySpan<char> FoldedSpan => Folded.AsSpan();
-
-    public ReadOnlySpan<char> SecondaryOriginalSpan => SecondaryOriginal.AsSpan();
-
-    public ReadOnlySpan<char> SecondaryFoldedSpan => SecondaryFolded.AsSpan();
-
-    public FuzzyTarget(
-        string original,
-        string folded,
-        ulong bloom,
-        string? secondaryOriginal = null,
-        string? secondaryFolded = null,
-        ulong secondaryBloom = 0)
-    {
-        Original = original;
-        Folded = folded;
-        Bloom = bloom;
-        SecondaryOriginal = secondaryOriginal;
-        SecondaryFolded = secondaryFolded;
-        SecondaryBloom = secondaryBloom;
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/FuzzyTargetCache.cs

@@ -1,34 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public struct FuzzyTargetCache
-{
-    private string? _lastRaw;
-    private uint _schemaId;
-    private FuzzyTarget _target;
-
-    public FuzzyTarget GetOrUpdate(IPrecomputedFuzzyMatcher matcher, string? raw)
-    {
-        raw ??= string.Empty;
-
-        if (_schemaId == matcher.SchemaId && string.Equals(_lastRaw, raw, StringComparison.Ordinal))
-        {
-            return _target;
-        }
-
-        _target = matcher.PrecomputeTarget(raw);
-        _schemaId = matcher.SchemaId;
-        _lastRaw = raw;
-        return _target;
-    }
-
-    public void Invalidate()
-    {
-        _lastRaw = null;
-        _target = default;
-        _schemaId = 0;
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/IBloomFilter.cs

@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public interface IBloomFilter
-{
-    ulong Compute(string input);
-
-    bool MightContain(ulong candidateBloom, ulong queryBloom);
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/IFuzzyMatcherProvider.cs

@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public interface IFuzzyMatcherProvider
-{
-    IPrecomputedFuzzyMatcher Current { get; }
-
-    void UpdateSettings(PrecomputedFuzzyMatcherOptions core, PinyinFuzzyMatcherOptions? pinyin = null);
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/IPrecomputedFuzzyMatcher.cs

@@ -1,16 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public interface IPrecomputedFuzzyMatcher
-{
-    uint SchemaId { get; }
-
-    FuzzyQuery PrecomputeQuery(string? input);
-
-    FuzzyTarget PrecomputeTarget(string? input);
-
-    int Score(scoped in FuzzyQuery query, scoped in FuzzyTarget target);
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/IStringFolder.cs

@@ -1,10 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public interface IStringFolder
-{
-    string Fold(string input, bool removeDiacritics);
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/PinyinFuzzyMatcherOptions.cs

@@ -1,13 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public sealed class PinyinFuzzyMatcherOptions
-{
-    public PinyinMode Mode { get; init; } = PinyinMode.AutoSimplifiedChineseUi;
-
-    /// <summary>Remove IME syllable separators (') for query secondary variant.</summary>
-    public bool RemoveApostrophesForQuery { get; init; } = true;
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/PinyinMode.cs

@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public enum PinyinMode
-{
-    Off = 0,
-    AutoSimplifiedChineseUi = 1,
-    On = 2,
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/PrecomputedFuzzyMatcher.cs

@@ -1,575 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Buffers;
-using System.Diagnostics;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public sealed class PrecomputedFuzzyMatcher : IPrecomputedFuzzyMatcher
-{
-    private const int NoMatchScore = 0;
-    private const int StackallocThresholdChars = 512;
-    private const int FolderSchemaVersion = 1;
-    private const int BloomSchemaVersion = 1;
-
-    private readonly PrecomputedFuzzyMatcherOptions _options;
-    private readonly IStringFolder _stringFolder;
-    private readonly IBloomFilter _bloom;
-
-    public PrecomputedFuzzyMatcher(
-        PrecomputedFuzzyMatcherOptions? options = null,
-        IStringFolder? normalization = null,
-        IBloomFilter? bloomCalculator = null)
-    {
-        _options = options ?? PrecomputedFuzzyMatcherOptions.Default;
-        _bloom = bloomCalculator ?? new BloomFilter();
-        _stringFolder = normalization ?? new StringFolder();
-
-        SchemaId = ComputeSchemaId(_options);
-    }
-
-    public uint SchemaId { get; }
-
-    public FuzzyQuery PrecomputeQuery(string? input) => PrecomputeQuery(input, null);
-
-    public FuzzyTarget PrecomputeTarget(string? input) => PrecomputeTarget(input, null);
-
-    public int Score(in FuzzyQuery query, in FuzzyTarget target)
-    {
-        var qFold = query.FoldedSpan;
-        var tLen = target.Length;
-
-        if (query.EffectiveLength == 0 || tLen == 0)
-        {
-            return NoMatchScore;
-        }
-
-        var skipWordSeparators = _options.SkipWordSeparators;
-        var bestScore = 0;
-
-        // 1. Primary → Primary
-        if (tLen >= query.EffectiveLength && _bloom.MightContain(target.Bloom, query.Bloom))
-        {
-            if (CanMatchSubsequence(qFold, target.FoldedSpan, skipWordSeparators))
-            {
-                bestScore = ScoreNonContiguous(
-                    qRaw: query.OriginalSpan,
-                    qFold: qFold,
-                    qEffectiveLen: query.EffectiveLength,
-                    tRaw: target.OriginalSpan,
-                    tFold: target.FoldedSpan,
-                    ignoreSameCaseBonusForThisQuery: _options.IgnoreSameCaseBonusIfQueryIsAllLowercase && query.IsAllLowercaseAsciiOrNonLetter);
-            }
-        }
-
-        // 2. Secondary → Secondary
-        if (query.HasSecondary && target.HasSecondary)
-        {
-            var qSecFold = query.SecondaryFoldedSpan;
-
-            if (target.SecondaryLength >= query.SecondaryEffectiveLength &&
-                _bloom.MightContain(target.SecondaryBloom, query.SecondaryBloom) &&
-                CanMatchSubsequence(qSecFold, target.SecondaryFoldedSpan, skipWordSeparators))
-            {
-                var score = ScoreNonContiguous(
-                    qRaw: query.SecondaryOriginalSpan,
-                    qFold: qSecFold,
-                    qEffectiveLen: query.SecondaryEffectiveLength,
-                    tRaw: target.SecondaryOriginalSpan,
-                    tFold: target.SecondaryFoldedSpan,
-                    ignoreSameCaseBonusForThisQuery: _options.IgnoreSameCaseBonusIfQueryIsAllLowercase && query.SecondaryIsAllLowercaseAsciiOrNonLetter);
-
-                if (score > bestScore)
-                {
-                    bestScore = score;
-                }
-            }
-        }
-
-        // 3. Primary query → Secondary target
-        if (target.HasSecondary &&
-            target.SecondaryLength >= query.EffectiveLength &&
-            _bloom.MightContain(target.SecondaryBloom, query.Bloom))
-        {
-            if (CanMatchSubsequence(qFold, target.SecondaryFoldedSpan, skipWordSeparators))
-            {
-                var score = ScoreNonContiguous(
-                    qRaw: query.OriginalSpan,
-                    qFold: qFold,
-                    qEffectiveLen: query.EffectiveLength,
-                    tRaw: target.SecondaryOriginalSpan,
-                    tFold: target.SecondaryFoldedSpan,
-                    ignoreSameCaseBonusForThisQuery: _options.IgnoreSameCaseBonusIfQueryIsAllLowercase && query.IsAllLowercaseAsciiOrNonLetter);
-
-                if (score > bestScore)
-                {
-                    bestScore = score;
-                }
-            }
-        }
-
-        // 4. Secondary query → Primary target
-        if (query.HasSecondary &&
-            tLen >= query.SecondaryEffectiveLength &&
-            _bloom.MightContain(target.Bloom, query.SecondaryBloom))
-        {
-            var qSecFold = query.SecondaryFoldedSpan;
-
-            if (CanMatchSubsequence(qSecFold, target.FoldedSpan, skipWordSeparators))
-            {
-                var score = ScoreNonContiguous(
-                    qRaw: query.SecondaryOriginalSpan,
-                    qFold: qSecFold,
-                    qEffectiveLen: query.SecondaryEffectiveLength,
-                    tRaw: target.OriginalSpan,
-                    tFold: target.FoldedSpan,
-                    ignoreSameCaseBonusForThisQuery: _options.IgnoreSameCaseBonusIfQueryIsAllLowercase && query.SecondaryIsAllLowercaseAsciiOrNonLetter);
-
-                if (score > bestScore)
-                {
-                    bestScore = score;
-                }
-            }
-        }
-
-        return bestScore;
-    }
-
-    private FuzzyQuery PrecomputeQuery(string? input, string? secondaryInput)
-    {
-        input ??= string.Empty;
-
-        var folded = _stringFolder.Fold(input, _options.RemoveDiacritics);
-        var bloom = _bloom.Compute(folded);
-        var effectiveLength = _options.SkipWordSeparators
-            ? folded.Length - CountWordSeparators(folded)
-            : folded.Length;
-
-        var isAllLowercase = IsAllLowercaseAsciiOrNonLetter(input);
-
-        string? secondaryOriginal = null;
-        string? secondaryFolded = null;
-        ulong secondaryBloom = 0;
-        var secondaryEffectiveLength = 0;
-        var secondaryIsAllLowercase = true;
-
-        if (!string.IsNullOrEmpty(secondaryInput))
-        {
-            secondaryOriginal = secondaryInput;
-            secondaryFolded = _stringFolder.Fold(secondaryInput, _options.RemoveDiacritics);
-            secondaryBloom = _bloom.Compute(secondaryFolded);
-            secondaryEffectiveLength = _options.SkipWordSeparators
-                ? secondaryFolded.Length - CountWordSeparators(secondaryFolded)
-                : secondaryFolded.Length;
-
-            secondaryIsAllLowercase = IsAllLowercaseAsciiOrNonLetter(secondaryInput);
-        }
-
-        return new FuzzyQuery(
-            original: input,
-            folded: folded,
-            bloom: bloom,
-            effectiveLength: effectiveLength,
-            isAllLowercaseAsciiOrNonLetter: isAllLowercase,
-            secondaryOriginal: secondaryOriginal,
-            secondaryFolded: secondaryFolded,
-            secondaryBloom: secondaryBloom,
-            secondaryEffectiveLength: secondaryEffectiveLength,
-            secondaryIsAllLowercaseAsciiOrNonLetter: secondaryIsAllLowercase);
-
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        static int CountWordSeparators(string s)
-        {
-            var count = 0;
-            foreach (var c in s)
-            {
-                if (SymbolClassifier.Classify(c) == SymbolKind.WordSeparator)
-                {
-                    count++;
-                }
-            }
-
-            return count;
-        }
-    }
-
-    internal FuzzyTarget PrecomputeTarget(string? input, string? secondaryInput)
-    {
-        input ??= string.Empty;
-
-        var folded = _stringFolder.Fold(input, _options.RemoveDiacritics);
-        var bloom = _bloom.Compute(folded);
-
-        string? secondaryFolded = null;
-        ulong secondaryBloom = 0;
-
-        if (!string.IsNullOrEmpty(secondaryInput))
-        {
-            secondaryFolded = _stringFolder.Fold(secondaryInput, _options.RemoveDiacritics);
-            secondaryBloom = _bloom.Compute(secondaryFolded);
-        }
-
-        return new FuzzyTarget(
-            input,
-            folded,
-            bloom,
-            secondaryInput,
-            secondaryFolded,
-            secondaryBloom);
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    private static bool IsAllLowercaseAsciiOrNonLetter(string s)
-    {
-        foreach (var c in s)
-        {
-            if ((uint)(c - 'A') <= ('Z' - 'A'))
-            {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    private static bool CanMatchSubsequence(
-        ReadOnlySpan<char> qFold,
-        ReadOnlySpan<char> tFold,
-        bool skipWordSeparators)
-    {
-        var qi = 0;
-        var ti = 0;
-
-        while (qi < qFold.Length && ti < tFold.Length)
-        {
-            var qChar = qFold[qi];
-
-            if (skipWordSeparators && SymbolClassifier.Classify(qChar) == SymbolKind.WordSeparator)
-            {
-                qi++;
-                continue;
-            }
-
-            if (qChar == tFold[ti])
-            {
-                qi++;
-            }
-
-            ti++;
-        }
-
-        // Skip trailing word separators in query
-        if (skipWordSeparators)
-        {
-            while (qi < qFold.Length && SymbolClassifier.Classify(qFold[qi]) == SymbolKind.WordSeparator)
-            {
-                qi++;
-            }
-        }
-
-        return qi == qFold.Length;
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveOptimization)]
-    [SkipLocalsInit]
-    private int ScoreNonContiguous(
-        scoped in ReadOnlySpan<char> qRaw,
-        scoped in ReadOnlySpan<char> qFold,
-        int qEffectiveLen,
-        scoped in ReadOnlySpan<char> tRaw,
-        scoped in ReadOnlySpan<char> tFold,
-        bool ignoreSameCaseBonusForThisQuery)
-    {
-        Debug.Assert(qRaw.Length == qFold.Length, "Original and folded spans are traversed in lockstep: requires qRaw.Length == qFold.Length");
-        Debug.Assert(tRaw.Length == tFold.Length, "Original and folded spans are traversed in lockstep: requires tRaw.Length == tFold.Length");
-        Debug.Assert(qEffectiveLen <= qFold.Length, "Effective length must be less than or equal to folded length");
-
-        var qLen = qFold.Length;
-        var tLen = tFold.Length;
-
-        // Copy options to local variables to avoid repeated field accesses
-        var charMatchBonus = _options.CharMatchBonus;
-        var sameCaseBonus = ignoreSameCaseBonusForThisQuery ? 0 : _options.SameCaseBonus;
-        var consecutiveMultiplier = _options.ConsecutiveMultiplier;
-        var camelCaseBonus = _options.CamelCaseBonus;
-        var startOfWordBonus = _options.StartOfWordBonus;
-        var pathSeparatorBonus = _options.PathSeparatorBonus;
-        var wordSeparatorBonus = _options.WordSeparatorBonus;
-        var separatorAlignmentBonus = _options.SeparatorAlignmentBonus;
-        var exactSeparatorBonus = _options.ExactSeparatorBonus;
-        var skipWordSeparators = _options.SkipWordSeparators;
-
-        // DP buffer: two rows of length tLen
-        var bufferSize = tLen * 2;
-        int[]? rented = null;
-
-        try
-        {
-            scoped Span<int> buffer;
-            if (bufferSize <= StackallocThresholdChars)
-            {
-                buffer = stackalloc int[bufferSize];
-            }
-            else
-            {
-                rented = ArrayPool<int>.Shared.Rent(bufferSize);
-                buffer = rented.AsSpan(0, bufferSize);
-            }
-
-            var scores = buffer[..tLen];
-            var seqLens = buffer.Slice(tLen, tLen);
-
-            scores.Clear();
-            seqLens.Clear();
-
-            ref var scores0 = ref MemoryMarshal.GetReference(scores);
-            ref var seqLens0 = ref MemoryMarshal.GetReference(seqLens);
-            ref var qRaw0 = ref MemoryMarshal.GetReference(qRaw);
-            ref var qFold0 = ref MemoryMarshal.GetReference(qFold);
-            ref var tRaw0 = ref MemoryMarshal.GetReference(tRaw);
-            ref var tFold0 = ref MemoryMarshal.GetReference(tFold);
-
-            var qiEffective = 0;
-
-            for (var qi = 0; qi < qLen; qi++)
-            {
-                var qCharFold = Unsafe.Add(ref qFold0, qi);
-                var qCharKind = SymbolClassifier.Classify(qCharFold);
-
-                if (skipWordSeparators && qCharKind == SymbolKind.WordSeparator)
-                {
-                    continue;
-                }
-
-                // Hoisted values
-                var qRawIsUpper = char.IsUpper(Unsafe.Add(ref qRaw0, qi));
-
-                // row computation
-                var leftScore = 0;
-                var diagScore = 0;
-                var diagSeqLen = 0;
-
-                // limit ti to ensure enough remaining characters to match the rest of the query
-                var tiMax = tLen - qEffectiveLen + qiEffective;
-
-                for (var ti = 0; ti <= tiMax; ti++)
-                {
-                    var upScore = Unsafe.Add(ref scores0, ti);
-                    var upSeqLen = Unsafe.Add(ref seqLens0, ti);
-
-                    var charScore = 0;
-                    if (diagScore != 0 || qiEffective == 0)
-                    {
-                        charScore = ComputeCharScore(
-                            qi,
-                            ti,
-                            qCharFold,
-                            qCharKind,
-                            diagSeqLen,
-                            qRawIsUpper,
-                            ref tRaw0,
-                            ref qFold0,
-                            ref tFold0);
-                    }
-
-                    var candidateScore = diagScore + charScore;
-                    if (charScore != 0 && candidateScore >= leftScore)
-                    {
-                        Unsafe.Add(ref scores0, ti) = candidateScore;
-                        Unsafe.Add(ref seqLens0, ti) = diagSeqLen + 1;
-                        leftScore = candidateScore;
-                    }
-                    else
-                    {
-                        Unsafe.Add(ref scores0, ti) = leftScore;
-                        Unsafe.Add(ref seqLens0, ti) = 0;
-                        /* leftScore remains unchanged */
-                    }
-
-                    diagScore = upScore;
-                    diagSeqLen = upSeqLen;
-                }
-
-                // Early exit: no match possible
-                if (leftScore == 0)
-                {
-                    return NoMatchScore;
-                }
-
-                // Advance effective query index
-                // Only counts non-separator characters if skipWordSeparators is enabled
-                qiEffective++;
-
-                if (qiEffective == qEffectiveLen)
-                {
-                    return leftScore;
-                }
-            }
-
-            return scores[tLen - 1];
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
-            int ComputeCharScore(
-                int qi,
-                int ti,
-                char qCharFold,
-                SymbolKind qCharKind,
-                int seqLen,
-                bool qCharRawCurrIsUpper,
-                ref char tRaw0,
-                ref char qFold0,
-                ref char tFold0)
-            {
-                // Match check:
-                // - exact folded char match always ok
-                // - otherwise, allow equivalence only for word separators (e.g. '_' matches '-')
-                var tCharFold = Unsafe.Add(ref tFold0, ti);
-                if (qCharFold != tCharFold)
-                {
-                    if (!skipWordSeparators)
-                    {
-                        return 0;
-                    }
-
-                    if (qCharKind != SymbolKind.WordSeparator ||
-                        SymbolClassifier.Classify(tCharFold) != SymbolKind.WordSeparator)
-                    {
-                        return 0;
-                    }
-                }
-
-                // 0. Base char match bonus
-                var score = charMatchBonus;
-
-                // 1. Consecutive match bonus
-                if (seqLen > 0)
-                {
-                    score += seqLen * consecutiveMultiplier;
-                }
-
-                // 2. Same case bonus
-                // Early outs to appease the branch predictor
-                if (sameCaseBonus != 0)
-                {
-                    var tCharRawCurr = Unsafe.Add(ref tRaw0, ti);
-                    var tCharRawCurrIsUpper = char.IsUpper(tCharRawCurr);
-                    if (qCharRawCurrIsUpper == tCharRawCurrIsUpper)
-                    {
-                        score += sameCaseBonus;
-                    }
-
-                    if (ti == 0)
-                    {
-                        score += startOfWordBonus;
-                        return score;
-                    }
-
-                    var tPrevFold = Unsafe.Add(ref tFold0, ti - 1);
-                    var tPrevKind = SymbolClassifier.Classify(tPrevFold);
-                    if (tPrevKind != SymbolKind.Other)
-                    {
-                        score += tPrevKind == SymbolKind.PathSeparator
-                            ? pathSeparatorBonus
-                            : wordSeparatorBonus;
-
-                        if (skipWordSeparators && seqLen == 0 && qi > 0)
-                        {
-                            var qPrevFold = Unsafe.Add(ref qFold0, qi - 1);
-                            var qPrevKind = SymbolClassifier.Classify(qPrevFold);
-
-                            if (qPrevKind == SymbolKind.WordSeparator)
-                            {
-                                score += separatorAlignmentBonus;
-
-                                if (tPrevKind == SymbolKind.WordSeparator && qPrevFold == tPrevFold)
-                                {
-                                    score += exactSeparatorBonus;
-                                }
-                            }
-                        }
-
-                        return score;
-                    }
-
-                    if (tCharRawCurrIsUpper && seqLen == 0)
-                    {
-                        score += camelCaseBonus;
-                        return score;
-                    }
-
-                    return score;
-                }
-                else
-                {
-                    if (ti == 0)
-                    {
-                        score += startOfWordBonus;
-                        return score;
-                    }
-
-                    var tPrevFold = Unsafe.Add(ref tFold0, ti - 1);
-                    var tPrevKind = SymbolClassifier.Classify(tPrevFold);
-                    if (tPrevKind != SymbolKind.Other)
-                    {
-                        score += tPrevKind == SymbolKind.PathSeparator
-                            ? pathSeparatorBonus
-                            : wordSeparatorBonus;
-
-                        if (skipWordSeparators && seqLen == 0 && qi > 0)
-                        {
-                            var qPrevFold = Unsafe.Add(ref qFold0, qi - 1);
-                            var qPrevKind = SymbolClassifier.Classify(qPrevFold);
-
-                            if (qPrevKind == SymbolKind.WordSeparator)
-                            {
-                                score += separatorAlignmentBonus;
-
-                                if (tPrevKind == SymbolKind.WordSeparator && qPrevFold == tPrevFold)
-                                {
-                                    score += exactSeparatorBonus;
-                                }
-                            }
-                        }
-
-                        return score;
-                    }
-
-                    if (camelCaseBonus != 0 && seqLen == 0 && char.IsUpper(Unsafe.Add(ref tRaw0, ti)))
-                    {
-                        score += camelCaseBonus;
-                        return score;
-                    }
-
-                    return score;
-                }
-            }
-        }
-        finally
-        {
-            if (rented is not null)
-            {
-                ArrayPool<int>.Shared.Return(rented);
-            }
-        }
-    }
-
-    // Schema ID is for cache invalidation of precomputed targets.
-    // Only includes options that affect folding/bloom, not scoring.
-    private static uint ComputeSchemaId(PrecomputedFuzzyMatcherOptions o)
-    {
-        const uint fnvOffset = 2166136261;
-        const uint fnvPrime = 16777619;
-
-        var h = fnvOffset;
-        h = unchecked((h ^ FolderSchemaVersion) * fnvPrime);
-        h = unchecked((h ^ BloomSchemaVersion) * fnvPrime);
-        h = unchecked((h ^ (uint)(o.RemoveDiacritics ? 1 : 0)) * fnvPrime);
-
-        return h;
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/PrecomputedFuzzyMatcherOptions.cs

@@ -1,40 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public sealed class PrecomputedFuzzyMatcherOptions
-{
-    public static PrecomputedFuzzyMatcherOptions Default { get; } = new();
-
-    /*
-     * Bonuses
-     */
-    public int CharMatchBonus { get; init; } = 1;
-
-    public int SameCaseBonus { get; init; } = 1;
-
-    public int ConsecutiveMultiplier { get; init; } = 5;
-
-    public int CamelCaseBonus { get; init; } = 2;
-
-    public int StartOfWordBonus { get; init; } = 8;
-
-    public int PathSeparatorBonus { get; init; } = 5;
-
-    public int WordSeparatorBonus { get; init; } = 4;
-
-    public int SeparatorAlignmentBonus { get; init; } = 2;
-
-    public int ExactSeparatorBonus { get; init; } = 1;
-
-    /*
-     * Settings
-     */
-    public bool RemoveDiacritics { get; init; } = true;
-
-    public bool SkipWordSeparators { get; init; } = true;
-
-    public bool IgnoreSameCaseBonusIfQueryIsAllLowercase { get; init; } = true;
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/PrecomputedFuzzyMatcherWithPinyin.cs

@@ -1,177 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Globalization;
-using System.Runtime.CompilerServices;
-using ToolGood.Words.Pinyin;
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public sealed class PrecomputedFuzzyMatcherWithPinyin : IPrecomputedFuzzyMatcher
-{
-    private readonly IBloomFilter _bloom;
-    private readonly PrecomputedFuzzyMatcher _core;
-
-    private readonly IStringFolder _stringFolder;
-    private readonly PinyinFuzzyMatcherOptions _pinyin;
-
-    public PrecomputedFuzzyMatcherWithPinyin(
-        PrecomputedFuzzyMatcherOptions coreOptions,
-        PinyinFuzzyMatcherOptions pinyinOptions,
-        IStringFolder stringFolder,
-        IBloomFilter bloom)
-    {
-        _pinyin = pinyinOptions;
-        _stringFolder = stringFolder;
-        _bloom = bloom;
-
-        _core = new PrecomputedFuzzyMatcher(coreOptions, stringFolder, bloom);
-
-        SchemaId = CombineSchema(_core.SchemaId, _pinyin);
-    }
-
-    public uint SchemaId { get; }
-
-    public FuzzyQuery PrecomputeQuery(string? input)
-    {
-        input ??= string.Empty;
-
-        var primary = _core.PrecomputeQuery(input);
-
-        // Fast exit if effectively off (provider should already filter, but keep robust)
-        if (!IsPinyinEnabled(_pinyin))
-        {
-            return primary;
-        }
-
-        // Match legacy: remove apostrophes for query secondary
-        var queryForPinyin = _pinyin.RemoveApostrophesForQuery ? RemoveApostrophesIfAny(input) : input;
-
-        var pinyin = WordsHelper.GetPinyin(queryForPinyin);
-        if (string.IsNullOrEmpty(pinyin))
-        {
-            return primary;
-        }
-
-        var secondary = _core.PrecomputeQuery(pinyin);
-        return new FuzzyQuery(
-            primary.Original,
-            primary.Folded,
-            primary.Bloom,
-            primary.EffectiveLength,
-            primary.IsAllLowercaseAsciiOrNonLetter,
-            secondary.Original,
-            secondary.Folded,
-            secondary.Bloom,
-            secondary.EffectiveLength,
-            secondary.SecondaryIsAllLowercaseAsciiOrNonLetter);
-    }
-
-    public FuzzyTarget PrecomputeTarget(string? input)
-    {
-        input ??= string.Empty;
-
-        var primary = _core.PrecomputeTarget(input);
-
-        if (!IsPinyinEnabled(_pinyin))
-        {
-            return primary;
-        }
-
-        // Match legacy: only compute target pinyin when target contains Chinese
-        if (!ContainsToolGoodChinese(input))
-        {
-            return primary;
-        }
-
-        var pinyin = WordsHelper.GetPinyin(input);
-        if (string.IsNullOrEmpty(pinyin))
-        {
-            return primary;
-        }
-
-        var secondary = _core.PrecomputeTarget(pinyin);
-        return new FuzzyTarget(
-            primary.Original,
-            primary.Folded,
-            primary.Bloom,
-            secondary.Original,
-            secondary.Folded,
-            secondary.Bloom);
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public int Score(scoped in FuzzyQuery query, scoped in FuzzyTarget target)
-        => _core.Score(in query, in target);
-
-    private static bool IsPinyinEnabled(PinyinFuzzyMatcherOptions o) => o.Mode switch
-    {
-        PinyinMode.Off => false,
-        PinyinMode.On => true,
-        PinyinMode.AutoSimplifiedChineseUi => IsSimplifiedChineseUi(),
-        _ => false,
-    };
-
-    private static bool IsSimplifiedChineseUi()
-    {
-        var culture = CultureInfo.CurrentUICulture;
-        return culture.Name.StartsWith("zh-CN", StringComparison.OrdinalIgnoreCase)
-               || culture.Name.StartsWith("zh-Hans", StringComparison.OrdinalIgnoreCase);
-    }
-
-    private static bool ContainsToolGoodChinese(string s)
-    {
-        return WordsHelper.HasChinese(s);
-    }
-
-    private static string RemoveApostrophesIfAny(string input)
-    {
-        var first = input.IndexOf('\'');
-        if (first < 0)
-        {
-            return input;
-        }
-
-        var removeCount = 1;
-        for (var i = first + 1; i < input.Length; i++)
-        {
-            if (input[i] == '\'')
-            {
-                removeCount++;
-            }
-        }
-
-        return string.Create(input.Length - removeCount, input, static (dst, src) =>
-        {
-            var di = 0;
-            for (var i = 0; i < src.Length; i++)
-            {
-                var c = src[i];
-                if (c == '\'')
-                {
-                    continue;
-                }
-
-                dst[di++] = c;
-            }
-        });
-    }
-
-    private static uint CombineSchema(uint coreSchemaId, PinyinFuzzyMatcherOptions p)
-    {
-        const uint fnvOffset = 2166136261;
-        const uint fnvPrime = 16777619;
-
-        var h = fnvOffset;
-        h = unchecked((h ^ coreSchemaId) * fnvPrime);
-        h = unchecked((h ^ (uint)p.Mode) * fnvPrime);
-        h = unchecked((h ^ (p.RemoveApostrophesForQuery ? 1u : 0u)) * fnvPrime);
-
-        // bump if you change formatting/conversion behavior
-        const uint pinyinAlgoVersion = 1;
-        h = unchecked((h ^ pinyinAlgoVersion) * fnvPrime);
-
-        return h;
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/StringFolder.cs

@@ -1,163 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Globalization;
-using System.Runtime.CompilerServices;
-using System.Text;
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-public sealed class StringFolder : IStringFolder
-{
-    // Cache for diacritic-stripped uppercase characters.
-    // Benign race: worst case is redundant computation writing the same value.
-    // 0 = uncached, else cachedChar + 1
-    private static readonly ushort[] StripCacheUpper = new ushort[char.MaxValue + 1];
-
-    public string Fold(string input, bool removeDiacritics)
-    {
-        if (string.IsNullOrEmpty(input))
-        {
-            return string.Empty;
-        }
-
-        if (!removeDiacritics || Ascii.IsValid(input))
-        {
-            if (IsAlreadyFoldedAndSlashNormalized(input))
-            {
-                return input;
-            }
-
-            return string.Create(input.Length, input, static (dst, src) =>
-            {
-                for (var i = 0; i < src.Length; i++)
-                {
-                    var c = src[i];
-                    dst[i] = c == '\\' ? '/' : char.ToUpperInvariant(c);
-                }
-            });
-        }
-
-        return string.Create(input.Length, input, static (dst, src) =>
-        {
-            for (var i = 0; i < src.Length; i++)
-            {
-                var c = src[i];
-                var upper = c == '\\' ? '/' : char.ToUpperInvariant(c);
-                dst[i] = StripDiacriticsFromUpper(upper);
-            }
-        });
-    }
-
-    private static bool IsAlreadyFoldedAndSlashNormalized(string input)
-    {
-        var sawNonAscii = false;
-
-        for (var i = 0; i < input.Length; i++)
-        {
-            var c = input[i];
-
-            if (c == '\\')
-            {
-                return false;
-            }
-
-            if ((uint)(c - 'a') <= 'z' - 'a')
-            {
-                return false;
-            }
-
-            if (c > 0x7F)
-            {
-                sawNonAscii = true;
-            }
-        }
-
-        if (sawNonAscii)
-        {
-            for (var i = 0; i < input.Length; i++)
-            {
-                var c = input[i];
-                if (c <= 0x7F)
-                {
-                    continue;
-                }
-
-                var cat = CharUnicodeInfo.GetUnicodeCategory(c);
-                if (cat is UnicodeCategory.LowercaseLetter or UnicodeCategory.TitlecaseLetter)
-                {
-                    return false;
-                }
-            }
-        }
-
-        return true;
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    private static char StripDiacriticsFromUpper(char upper)
-    {
-        if (upper <= 0x7F)
-        {
-            return upper;
-        }
-
-        // Never attempt normalization on lone UTF-16 surrogates.
-        if (char.IsSurrogate(upper))
-        {
-            return upper;
-        }
-
-        var cachedPlus1 = StripCacheUpper[upper];
-        if (cachedPlus1 != 0)
-        {
-            return (char)(cachedPlus1 - 1);
-        }
-
-        var mapped = StripDiacriticsSlow(upper);
-        StripCacheUpper[upper] = (ushort)(mapped + 1);
-        return mapped;
-    }
-
-    [MethodImpl(MethodImplOptions.NoInlining)]
-    private static char StripDiacriticsSlow(char upper)
-    {
-        try
-        {
-            var baseChar = FirstNonMark(upper, NormalizationForm.FormD);
-            if (baseChar == '\0' || baseChar == upper)
-            {
-                var kd = FirstNonMark(upper, NormalizationForm.FormKD);
-                if (kd != '\0')
-                {
-                    baseChar = kd;
-                }
-            }
-
-            return char.ToUpperInvariant(baseChar == '\0' ? upper : baseChar);
-        }
-        catch
-        {
-            // Absolute safety: if globalization tables ever throw for some reason,
-            // degrade gracefully rather than failing hard.
-            return upper;
-        }
-
-        static char FirstNonMark(char c, NormalizationForm form)
-        {
-            var normalized = c.ToString().Normalize(form);
-
-            foreach (var ch in normalized)
-            {
-                var cat = CharUnicodeInfo.GetUnicodeCategory(ch);
-                if (cat is not (UnicodeCategory.NonSpacingMark or UnicodeCategory.SpacingCombiningMark or UnicodeCategory.EnclosingMark))
-                {
-                    return ch;
-                }
-            }
-
-            return '\0';
-        }
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/SymbolClassifier.cs

@@ -1,29 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.CompilerServices;
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-internal static class SymbolClassifier
-{
-    // Embedded in .data section - no allocation, no static constructor
-    private static ReadOnlySpan<byte> Lookup =>
-    [
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0-15
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16-31
-        2, 0, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 2, 2, 1, // 32-47: space=2, "=2, '=2, -=2, .=2, /=1
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, // 48-63: :=2
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 64-79
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, // 80-95: _=2
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 96-111
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // 112-127
-    ];
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static SymbolKind Classify(char c)
-    {
-        return c > 0x7F ? SymbolKind.Other : (SymbolKind)Lookup[c];
-    }
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.Common/Text/SymbolKind.cs

@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.Common.Text;
-
-internal enum SymbolKind : byte
-{
-    Other = 0,
-    PathSeparator = 1,
-    WordSeparator = 2,
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.ViewModels/CommandItemViewModel.cs

@@ -4,8 +4,6 @@
 
 using System.Diagnostics.CodeAnalysis;
 using Microsoft.CmdPal.Core.Common;
-using Microsoft.CmdPal.Core.Common.Helpers;
-using Microsoft.CmdPal.Core.Common.Text;
 using Microsoft.CmdPal.Core.ViewModels.Messages;
 using Microsoft.CmdPal.Core.ViewModels.Models;
 using Microsoft.CommandPalette.Extensions;
@@ -15,7 +13,7 @@ using Windows.ApplicationModel.DataTransfer;
 namespace Microsoft.CmdPal.Core.ViewModels;
 
 [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)]
-public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBarContext, IPrecomputedListItem
+public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBarContext
 {
     public ExtensionObject<ICommandItem> Model => _commandItemModel;
 
@@ -24,9 +22,6 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
     private readonly ExtensionObject<ICommandItem> _commandItemModel = new(null);
     private CommandContextItemViewModel? _defaultCommandContextItemViewModel;
 
-    private FuzzyTargetCache _titleCache;
-    private FuzzyTargetCache _subtitleCache;
-
     internal InitializedState Initialized { get; private set; } = InitializedState.Uninitialized;
 
     protected bool IsFastInitialized => IsInErrorState || Initialized.HasFlag(InitializedState.FastInitialized);
@@ -121,8 +116,6 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
 
         _itemTitle = model.Title;
         Subtitle = model.Subtitle;
-        _titleCache.Invalidate();
-        _subtitleCache.Invalidate();
 
         Initialized |= InitializedState.FastInitialized;
     }
@@ -256,8 +249,6 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
             Subtitle = "Item failed to load";
             MoreCommands = [];
             _icon = _errorIcon;
-            _titleCache.Invalidate();
-            _subtitleCache.Invalidate();
             Initialized |= InitializedState.Error;
         }
 
@@ -295,8 +286,6 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
             Subtitle = "Item failed to load";
             MoreCommands = [];
             _icon = _errorIcon;
-            _titleCache.Invalidate();
-            _subtitleCache.Invalidate();
             Initialized |= InitializedState.Error;
         }
 
@@ -346,14 +335,12 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
 
             case nameof(Title):
                 _itemTitle = model.Title;
-                _titleCache.Invalidate();
                 break;
 
             case nameof(Subtitle):
                 var modelSubtitle = model.Subtitle;
                 this.Subtitle = modelSubtitle;
                 _defaultCommandContextItemViewModel?.Subtitle = modelSubtitle;
-                _subtitleCache.Invalidate();
                 break;
 
             case nameof(Icon):
@@ -428,7 +415,6 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
                 // Extensions based on Command Palette SDK < 0.3 CommandItem class won't notify when Title changes because Command
                 // or Command.Name change. This is a workaround to ensure that the Title is always up-to-date for extensions with old SDK.
                 _itemTitle = model.Title;
-                _titleCache.Invalidate();
                 UpdateProperty(nameof(Title), nameof(Name));
 
                 _defaultCommandContextItemViewModel?.UpdateTitle(model.Command.Name);
@@ -450,7 +436,6 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
     private void UpdateTitle(string? title)
     {
         _itemTitle = title ?? string.Empty;
-        _titleCache.Invalidate();
         UpdateProperty(nameof(Title));
     }
 
@@ -471,12 +456,6 @@ public partial class CommandItemViewModel : ExtensionObjectViewModel, ICommandBa
         UpdateProperty(nameof(DataPackage));
     }
 
-    public FuzzyTarget GetTitleTarget(IPrecomputedFuzzyMatcher matcher)
-        => _titleCache.GetOrUpdate(matcher, Title);
-
-    public FuzzyTarget GetSubtitleTarget(IPrecomputedFuzzyMatcher matcher)
-        => _subtitleCache.GetOrUpdate(matcher, Subtitle);
-
     protected override void UnsafeCleanup()
     {
         base.UnsafeCleanup();

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.ViewModels/CommandViewModel.cs

@@ -11,8 +11,6 @@ public partial class CommandViewModel : ExtensionObjectViewModel
 {
     public ExtensionObject<ICommand> Model { get; private set; } = new(null);
 
-    public bool IsSet => Model.Unsafe is not null;
-
     protected bool IsInitialized { get; private set; }
 
     protected bool IsFastInitialized { get; private set; }

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.ViewModels/ContextMenuViewModel.cs

@@ -3,12 +3,9 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Collections.ObjectModel;
-using System.Runtime.CompilerServices;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Messaging;
 using Microsoft.CmdPal.Core.Common;
-using Microsoft.CmdPal.Core.Common.Helpers;
-using Microsoft.CmdPal.Core.Common.Text;
 using Microsoft.CmdPal.Core.ViewModels.Messages;
 using Microsoft.CommandPalette.Extensions;
 using Microsoft.CommandPalette.Extensions.Toolkit;
@@ -19,8 +16,6 @@ namespace Microsoft.CmdPal.Core.ViewModels;
 public partial class ContextMenuViewModel : ObservableObject,
     IRecipient<UpdateCommandBarMessage>
 {
-    private readonly IFuzzyMatcherProvider _fuzzyMatcherProvider;
-
     public ICommandBarContext? SelectedItem
     {
         get => field;
@@ -44,9 +39,8 @@ public partial class ContextMenuViewModel : ObservableObject,
 
     private string _lastSearchText = string.Empty;
 
-    public ContextMenuViewModel(IFuzzyMatcherProvider fuzzyMatcherProvider)
+    public ContextMenuViewModel()
     {
-        _fuzzyMatcherProvider = fuzzyMatcherProvider;
         WeakReferenceMessenger.Default.Register<UpdateCommandBarMessage>(this);
     }
 
@@ -97,14 +91,13 @@ public partial class ContextMenuViewModel : ObservableObject,
                             .OfType<CommandContextItemViewModel>()
                             .Where(c => c.ShouldBeVisible);
 
-        var query = _fuzzyMatcherProvider.Current.PrecomputeQuery(searchText);
-        var newResults = InternalListHelpers.FilterList(commands, in query, ScoreFunction);
+        var newResults = ListHelpers.FilterList<CommandContextItemViewModel>(commands, searchText, ScoreContextCommand);
         ListHelpers.InPlaceUpdateList(FilteredItems, newResults);
     }
 
-    private int ScoreFunction(in FuzzyQuery query, CommandContextItemViewModel item)
+    private static int ScoreContextCommand(string query, CommandContextItemViewModel item)
     {
-        if (string.IsNullOrWhiteSpace(query.Original))
+        if (string.IsNullOrEmpty(query) || string.IsNullOrWhiteSpace(query))
         {
             return 1;
         }
@@ -114,21 +107,11 @@ public partial class ContextMenuViewModel : ObservableObject,
             return 0;
         }
 
-        var fuzzyMatcher = _fuzzyMatcherProvider.Current;
-        var title = item.GetTitleTarget(fuzzyMatcher);
-        var subtitle = item.GetSubtitleTarget(fuzzyMatcher);
+        var nameMatch = FuzzyStringMatcher.ScoreFuzzy(query, item.Title);
 
-        var titleScore = fuzzyMatcher.Score(query, title);
-        var subtitleScore = (fuzzyMatcher.Score(query, subtitle) - 4) / 2;
+        var descriptionMatch = FuzzyStringMatcher.ScoreFuzzy(query, item.Subtitle);
 
-        return Max3(titleScore, subtitleScore, 0);
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    private static int Max3(int a, int b, int c)
-    {
-        var m = a > b ? a : b;
-        return m > c ? m : c;
+        return new[] { nameMatch, (descriptionMatch - 4) / 2, 0 }.Max();
     }
 
     /// <summary>

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.ViewModels/ListItemType.cs

@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.Core.ViewModels;
-
-public enum ListItemType
-{
-    Item,
-    SectionHeader,
-    Separator,
-}

src/modules/cmdpal/Core/Microsoft.CmdPal.Core.ViewModels/ListItemViewModel.cs

@@ -24,9 +24,7 @@ public partial class ListItemViewModel : CommandItemViewModel
 
     public string Section { get; private set; } = string.Empty;
 
-    public ListItemType Type { get; private set; }
-
-    public bool IsInteractive => Type == ListItemType.Item;
+    public bool IsSectionOrSeparator { get; private set; }
 
     public DetailsViewModel? Details { get; private set; }
 
@@ -87,17 +85,15 @@ public partial class ListItemViewModel : CommandItemViewModel
 
         UpdateTags(li.Tags);
         Section = li.Section ?? string.Empty;
-        Type = EvaluateType();
-        UpdateProperty(nameof(Section), nameof(Type), nameof(IsInteractive));
+        IsSectionOrSeparator = IsSeparator(li);
+        UpdateProperty(nameof(Section), nameof(IsSectionOrSeparator));
 
         UpdateAccessibleName();
     }
 
-    private ListItemType EvaluateType()
+    private bool IsSeparator(IListItem item)
     {
-        return Command.IsSet
-            ? ListItemType.Item
-            : string.IsNullOrEmpty(Section) ? ListItemType.Separator : ListItemType.SectionHeader;
+        return item.Command is null;
     }
 
     public override void SlowInitializeProperties()
@@ -144,12 +140,12 @@ public partial class ListItemViewModel : CommandItemViewModel
                 break;
             case nameof(model.Section):
                 Section = model.Section ?? string.Empty;
-                Type = EvaluateType();
-                UpdateProperty(nameof(Section), nameof(Type), nameof(IsInteractive));
+                IsSectionOrSeparator = IsSeparator(model);
+                UpdateProperty(nameof(Section), nameof(IsSectionOrSeparator));
                 break;
             case nameof(model.Command):
-                Type = EvaluateType();
-                UpdateProperty(nameof(Type), nameof(IsInteractive));
+                IsSectionOrSeparator = IsSeparator(model);
+                UpdateProperty(nameof(IsSectionOrSeparator));
                 break;
             case nameof(Details):
                 var extensionDetails = model.Details;

src/modules/cmdpal/ExtensionTemplate/TemplateCmdPalExtension/Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="Microsoft.Windows.CsWinRT" Version="2.2.0" />
     <PackageVersion Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.26100.4188" />
     <PackageVersion Include="Microsoft.Windows.SDK.BuildTools.MSIX" Version="1.7.20250829.1" />
-    <PackageVersion Include="Microsoft.WindowsAppSDK" Version="1.8.260209005" />
+    <PackageVersion Include="Microsoft.WindowsAppSDK" Version="1.8.250907003" />
     <PackageVersion Include="Shmuelie.WinRTServer" Version="2.1.1" />
     <PackageVersion Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
     <PackageVersion Include="System.Text.Json" Version="9.0.8" />

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AppearanceSettingsViewModel.cs

@@ -18,8 +18,6 @@ namespace Microsoft.CmdPal.UI.ViewModels;
 
 public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDisposable
 {
-    private static readonly Color DefaultTintColor = Color.FromArgb(255, 0, 120, 212);
-
     private static readonly ObservableCollection<Color> WindowsColorSwatches = [
 
         // row 0
@@ -130,13 +128,10 @@ public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDis
                 OnPropertyChanged();
                 OnPropertyChanged(nameof(ColorizationModeIndex));
                 OnPropertyChanged(nameof(IsCustomTintVisible));
-                OnPropertyChanged(nameof(IsColorIntensityVisible));
-                OnPropertyChanged(nameof(IsImageTintIntensityVisible));
-                OnPropertyChanged(nameof(EffectiveTintIntensity));
+                OnPropertyChanged(nameof(IsCustomTintIntensityVisible));
                 OnPropertyChanged(nameof(IsBackgroundControlsVisible));
                 OnPropertyChanged(nameof(IsNoBackgroundVisible));
                 OnPropertyChanged(nameof(IsAccentColorControlsVisible));
-                OnPropertyChanged(nameof(IsResetButtonVisible));
 
                 if (value == ColorizationMode.WindowsAccentColor)
                 {
@@ -184,19 +179,6 @@ public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDis
         {
             _settings.CustomThemeColorIntensity = value;
             OnPropertyChanged();
-            OnPropertyChanged(nameof(EffectiveTintIntensity));
-            Save();
-        }
-    }
-
-    public int BackgroundImageTintIntensity
-    {
-        get => _settings.BackgroundImageTintIntensity;
-        set
-        {
-            _settings.BackgroundImageTintIntensity = value;
-            OnPropertyChanged();
-            OnPropertyChanged(nameof(EffectiveTintIntensity));
             Save();
         }
     }
@@ -297,108 +279,12 @@ public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDis
         };
     }
 
-    public int BackdropOpacity
-    {
-        get => _settings.BackdropOpacity;
-        set
-        {
-            if (_settings.BackdropOpacity != value)
-            {
-                _settings.BackdropOpacity = value;
-                OnPropertyChanged();
-                OnPropertyChanged(nameof(EffectiveBackdropStyle));
-                OnPropertyChanged(nameof(EffectiveImageOpacity));
-                Save();
-            }
-        }
-    }
-
-    public int BackdropStyleIndex
-    {
-        get => (int)_settings.BackdropStyle;
-        set
-        {
-            var newStyle = (BackdropStyle)value;
-            if (_settings.BackdropStyle != newStyle)
-            {
-                _settings.BackdropStyle = newStyle;
-
-                OnPropertyChanged();
-                OnPropertyChanged(nameof(IsBackdropOpacityVisible));
-                OnPropertyChanged(nameof(IsMicaBackdropDescriptionVisible));
-                OnPropertyChanged(nameof(IsBackgroundSettingsEnabled));
-                OnPropertyChanged(nameof(IsBackgroundNotAvailableVisible));
-
-                if (!IsBackgroundSettingsEnabled)
-                {
-                    IsColorizationDetailsExpanded = false;
-                }
-
-                Save();
-            }
-        }
-    }
-
-    /// <summary>
-    /// Gets whether the backdrop opacity slider should be visible.
-    /// </summary>
-    public bool IsBackdropOpacityVisible =>
-        BackdropStyles.Get(_settings.BackdropStyle).SupportsOpacity;
-
-    /// <summary>
-    /// Gets whether the backdrop description (for styles without options) should be visible.
-    /// </summary>
-    public bool IsMicaBackdropDescriptionVisible =>
-        !BackdropStyles.Get(_settings.BackdropStyle).SupportsOpacity;
-
-    /// <summary>
-    /// Gets whether background/colorization settings are available.
-    /// </summary>
-    public bool IsBackgroundSettingsEnabled =>
-        BackdropStyles.Get(_settings.BackdropStyle).SupportsColorization;
-
-    /// <summary>
-    /// Gets whether the "not available" message should be shown (inverse of IsBackgroundSettingsEnabled).
-    /// </summary>
-    public bool IsBackgroundNotAvailableVisible =>
-        !BackdropStyles.Get(_settings.BackdropStyle).SupportsColorization;
-
-    public BackdropStyle? EffectiveBackdropStyle
-    {
-        get
-        {
-            // Return style when transparency/blur is visible (not fully opaque Acrylic)
-            // - Clear/Mica/MicaAlt/AcrylicThin always show their effect
-            // - Acrylic shows effect only when opacity < 100
-            if (_settings.BackdropStyle != BackdropStyle.Acrylic || _settings.BackdropOpacity < 100)
-            {
-                return _settings.BackdropStyle;
-            }
-
-            return null;
-        }
-    }
-
-    public double EffectiveImageOpacity =>
-        EffectiveBackdropStyle is not null
-            ? (BackgroundImageOpacity / 100f) * Math.Sqrt(_settings.BackdropOpacity / 100.0)
-            : (BackgroundImageOpacity / 100f);
-
     [ObservableProperty]
     public partial bool IsColorizationDetailsExpanded { get; set; }
 
     public bool IsCustomTintVisible => _settings.ColorizationMode is ColorizationMode.CustomColor or ColorizationMode.Image;
 
-    public bool IsColorIntensityVisible => _settings.ColorizationMode is ColorizationMode.CustomColor or ColorizationMode.WindowsAccentColor;
-
-    public bool IsImageTintIntensityVisible => _settings.ColorizationMode is ColorizationMode.Image;
-
-    /// <summary>
-    /// Gets the effective tint intensity for the preview, based on the current colorization mode.
-    /// </summary>
-    public int EffectiveTintIntensity => _settings.ColorizationMode is ColorizationMode.Image
-        ? _settings.BackgroundImageTintIntensity
-        : _settings.CustomThemeColorIntensity;
+    public bool IsCustomTintIntensityVisible => _settings.ColorizationMode is ColorizationMode.CustomColor or ColorizationMode.WindowsAccentColor or ColorizationMode.Image;
 
     public bool IsBackgroundControlsVisible => _settings.ColorizationMode is ColorizationMode.Image;
 
@@ -406,21 +292,16 @@ public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDis
 
     public bool IsAccentColorControlsVisible => _settings.ColorizationMode is ColorizationMode.WindowsAccentColor;
 
-    public bool IsResetButtonVisible => _settings.ColorizationMode is ColorizationMode.Image;
-
-    public BackdropParameters EffectiveBackdrop { get; private set; } = new(Colors.Black, Colors.Black, 0.5f, 0.5f);
+    public AcrylicBackdropParameters EffectiveBackdrop { get; private set; } = new(Colors.Black, Colors.Black, 0.5f, 0.5f);
 
     public ElementTheme EffectiveTheme => _elementThemeOverride ?? _themeService.Current.Theme;
 
-    public Color EffectiveThemeColor =>
-        !BackdropStyles.Get(_settings.BackdropStyle).SupportsColorization
-            ? Colors.Transparent
-            : ColorizationMode switch
-            {
-                ColorizationMode.WindowsAccentColor => _currentSystemAccentColor,
-                ColorizationMode.CustomColor or ColorizationMode.Image => ThemeColor,
-                _ => Colors.Transparent,
-            };
+    public Color EffectiveThemeColor => ColorizationMode switch
+    {
+        ColorizationMode.WindowsAccentColor => _currentSystemAccentColor,
+        ColorizationMode.CustomColor or ColorizationMode.Image => ThemeColor,
+        _ => Colors.Transparent,
+    };
 
     // Since the blur amount is absolute, we need to scale it down for the preview (which is smaller than full screen).
     public int EffectiveBackgroundImageBlurAmount => (int)Math.Round(BackgroundImageBlurAmount / 4f);
@@ -428,13 +309,11 @@ public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDis
     public double EffectiveBackgroundImageBrightness => BackgroundImageBrightness / 100.0;
 
     public ImageSource? EffectiveBackgroundImageSource =>
-        !BackdropStyles.Get(_settings.BackdropStyle).SupportsBackgroundImage
-            ? null
-            : ColorizationMode is ColorizationMode.Image
-              && !string.IsNullOrWhiteSpace(BackgroundImagePath)
-              && Uri.TryCreate(BackgroundImagePath, UriKind.RelativeOrAbsolute, out var uri)
-                ? new Microsoft.UI.Xaml.Media.Imaging.BitmapImage(uri)
-                : null;
+        ColorizationMode is ColorizationMode.Image
+        && !string.IsNullOrWhiteSpace(BackgroundImagePath)
+        && Uri.TryCreate(BackgroundImagePath, UriKind.RelativeOrAbsolute, out var uri)
+            ? new Microsoft.UI.Xaml.Media.Imaging.BitmapImage(uri)
+            : null;
 
     public AppearanceSettingsViewModel(IThemeService themeService, SettingsModel settings)
     {
@@ -448,7 +327,7 @@ public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDis
 
         Reapply();
 
-        IsColorizationDetailsExpanded = _settings.ColorizationMode != ColorizationMode.None && IsBackgroundSettingsEnabled;
+        IsColorizationDetailsExpanded = _settings.ColorizationMode != ColorizationMode.None;
     }
 
     private void UiSettingsOnColorValuesChanged(UISettings sender, object args) => _uiDispatcher.TryEnqueue(() => UpdateAccentColor(sender));
@@ -478,8 +357,6 @@ public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDis
         // Theme services recalculates effective color and opacity based on current settings.
         EffectiveBackdrop = _themeService.Current.BackdropParameters;
         OnPropertyChanged(nameof(EffectiveBackdrop));
-        OnPropertyChanged(nameof(EffectiveBackdropStyle));
-        OnPropertyChanged(nameof(EffectiveImageOpacity));
         OnPropertyChanged(nameof(EffectiveBackgroundImageBrightness));
         OnPropertyChanged(nameof(EffectiveBackgroundImageSource));
         OnPropertyChanged(nameof(EffectiveThemeColor));
@@ -502,28 +379,7 @@ public sealed partial class AppearanceSettingsViewModel : ObservableObject, IDis
         BackgroundImageBlurAmount = 0;
         BackgroundImageFit = BackgroundImageFit.UniformToFill;
         BackgroundImageOpacity = 100;
-        BackgroundImageTintIntensity = 0;
-    }
-
-    [RelayCommand]
-    private void ResetAppearanceSettings()
-    {
-        // Reset theme
-        Theme = UserTheme.Default;
-
-        // Reset backdrop settings
-        BackdropStyleIndex = (int)BackdropStyle.Acrylic;
-        BackdropOpacity = 100;
-
-        // Reset background image settings
-        BackgroundImagePath = string.Empty;
-        ResetBackgroundImageProperties();
-
-        // Reset colorization
-        ColorizationMode = ColorizationMode.None;
-        ThemeColor = DefaultTintColor;
-        ColorIntensity = 100;
-        BackgroundImageTintIntensity = 0;
+        ColorIntensity = 0;
     }
 
     public void Dispose()

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/BackdropControllerKind.cs

@@ -1,41 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.UI.ViewModels;
-
-/// <summary>
-/// Specifies the type of system backdrop controller to use.
-/// </summary>
-public enum BackdropControllerKind
-{
-    /// <summary>
-    /// Solid color with alpha transparency (TransparentTintBackdrop).
-    /// </summary>
-    Solid,
-
-    /// <summary>
-    /// Desktop Acrylic with default blur (DesktopAcrylicKind.Default).
-    /// </summary>
-    Acrylic,
-
-    /// <summary>
-    /// Desktop Acrylic with thinner blur (DesktopAcrylicKind.Thin).
-    /// </summary>
-    AcrylicThin,
-
-    /// <summary>
-    /// Mica effect (MicaKind.Base).
-    /// </summary>
-    Mica,
-
-    /// <summary>
-    /// Mica alternate/darker variant (MicaKind.BaseAlt).
-    /// </summary>
-    MicaAlt,
-
-    /// <summary>
-    /// Custom backdrop implementation.
-    /// </summary>
-    Custom,
-}

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/BackdropStyle.cs

@@ -1,36 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.UI.ViewModels;
-
-/// <summary>
-/// Specifies the visual backdrop style for the window.
-/// </summary>
-public enum BackdropStyle
-{
-    /// <summary>
-    /// Standard desktop acrylic with blur effect.
-    /// </summary>
-    Acrylic,
-
-    /// <summary>
-    /// Solid color with alpha transparency (no blur).
-    /// </summary>
-    Clear,
-
-    /// <summary>
-    /// Mica effect that samples the desktop wallpaper.
-    /// </summary>
-    Mica,
-
-    /// <summary>
-    /// Thinner acrylic variant with more transparency.
-    /// </summary>
-    AcrylicThin,
-
-    /// <summary>
-    /// Mica alternate variant (darker).
-    /// </summary>
-    MicaAlt,
-}

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/BackdropStyleConfig.cs

@@ -1,77 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.UI.ViewModels;
-
-/// <summary>
-/// Configuration parameters for a backdrop style.
-/// </summary>
-public sealed record BackdropStyleConfig
-{
-    /// <summary>
-    /// Gets the type of system backdrop controller to use.
-    /// </summary>
-    public required BackdropControllerKind ControllerKind { get; init; }
-
-    /// <summary>
-    /// Gets the base tint opacity before user adjustments.
-    /// </summary>
-    public required float BaseTintOpacity { get; init; }
-
-    /// <summary>
-    /// Gets the base luminosity opacity before user adjustments.
-    /// </summary>
-    public required float BaseLuminosityOpacity { get; init; }
-
-    /// <summary>
-    /// Gets the brush type to use for preview approximation.
-    /// </summary>
-    public required PreviewBrushKind PreviewBrush { get; init; }
-
-    /// <summary>
-    /// Gets the fixed opacity for styles that don't support user adjustment (e.g., Mica).
-    /// When <see cref="SupportsOpacity"/> is false, this value is used as the effective opacity.
-    /// </summary>
-    public float FixedOpacity { get; init; }
-
-    /// <summary>
-    /// Gets whether this backdrop style supports custom colorization (tint colors).
-    /// </summary>
-    public bool SupportsColorization { get; init; } = true;
-
-    /// <summary>
-    /// Gets whether this backdrop style supports custom background images.
-    /// </summary>
-    public bool SupportsBackgroundImage { get; init; } = true;
-
-    /// <summary>
-    /// Gets whether this backdrop style supports opacity adjustment.
-    /// </summary>
-    public bool SupportsOpacity { get; init; } = true;
-
-    /// <summary>
-    /// Computes the effective tint opacity based on this style's configuration.
-    /// </summary>
-    /// <param name="userOpacity">User's backdrop opacity setting (0-1 normalized).</param>
-    /// <param name="baseTintOpacityOverride">Optional override for base tint opacity (used by colorful theme).</param>
-    /// <returns>The effective opacity to apply.</returns>
-    public float ComputeEffectiveOpacity(float userOpacity, float? baseTintOpacityOverride = null)
-    {
-        // For styles that don't support opacity (Mica), use FixedOpacity
-        if (!SupportsOpacity && FixedOpacity > 0)
-        {
-            return FixedOpacity;
-        }
-
-        // For Solid: only user opacity matters (controls alpha of solid color)
-        if (ControllerKind == BackdropControllerKind.Solid)
-        {
-            return userOpacity;
-        }
-
-        // For blur effects: multiply base opacity with user opacity
-        var baseTint = baseTintOpacityOverride ?? BaseTintOpacity;
-        return baseTint * userOpacity;
-    }
-}

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/BackdropStyles.cs

@@ -1,65 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.UI.ViewModels;
-
-/// <summary>
-/// Central registry of backdrop style configurations.
-/// </summary>
-public static class BackdropStyles
-{
-    private static readonly Dictionary<BackdropStyle, BackdropStyleConfig> Configs = new()
-    {
-        [BackdropStyle.Acrylic] = new()
-        {
-            ControllerKind = BackdropControllerKind.Acrylic,
-            BaseTintOpacity = 0.5f,
-            BaseLuminosityOpacity = 0.9f,
-            PreviewBrush = PreviewBrushKind.Acrylic,
-        },
-        [BackdropStyle.AcrylicThin] = new()
-        {
-            ControllerKind = BackdropControllerKind.AcrylicThin,
-            BaseTintOpacity = 0.0f,
-            BaseLuminosityOpacity = 0.85f,
-            PreviewBrush = PreviewBrushKind.Acrylic,
-        },
-        [BackdropStyle.Mica] = new()
-        {
-            ControllerKind = BackdropControllerKind.Mica,
-            BaseTintOpacity = 0.0f,
-            BaseLuminosityOpacity = 1.0f,
-            PreviewBrush = PreviewBrushKind.Solid,
-            FixedOpacity = 0.96f,
-            SupportsOpacity = false,
-        },
-        [BackdropStyle.MicaAlt] = new()
-        {
-            ControllerKind = BackdropControllerKind.MicaAlt,
-            BaseTintOpacity = 0.0f,
-            BaseLuminosityOpacity = 1.0f,
-            PreviewBrush = PreviewBrushKind.Solid,
-            FixedOpacity = 0.98f,
-            SupportsOpacity = false,
-        },
-        [BackdropStyle.Clear] = new()
-        {
-            ControllerKind = BackdropControllerKind.Solid,
-            BaseTintOpacity = 1.0f,
-            BaseLuminosityOpacity = 1.0f,
-            PreviewBrush = PreviewBrushKind.Solid,
-        },
-    };
-
-    /// <summary>
-    /// Gets the configuration for the specified backdrop style.
-    /// </summary>
-    public static BackdropStyleConfig Get(BackdropStyle style) =>
-        Configs.TryGetValue(style, out var config) ? config : Configs[BackdropStyle.Acrylic];
-
-    /// <summary>
-    /// Gets all registered backdrop styles.
-    /// </summary>
-    public static IEnumerable<BackdropStyle> All => Configs.Keys;
-}

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPage.cs

@@ -8,7 +8,6 @@ using System.Diagnostics;
 using CommunityToolkit.Mvvm.Messaging;
 using ManagedCommon;
 using Microsoft.CmdPal.Core.Common.Helpers;
-using Microsoft.CmdPal.Core.Common.Text;
 using Microsoft.CmdPal.Core.ViewModels.Messages;
 using Microsoft.CmdPal.Ext.Apps;
 using Microsoft.CmdPal.Ext.Apps.Programs;
@@ -25,7 +24,7 @@ namespace Microsoft.CmdPal.UI.ViewModels.MainPage;
 /// This class encapsulates the data we load from built-in providers and extensions to use within the same extension-UI system for a <see cref="ListPage"/>.
 /// TODO: Need to think about how we structure/interop for the page -> section -> item between the main setup, the extensions, and our viewmodels.
 /// </summary>
-public sealed partial class MainListPage : DynamicListPage,
+public partial class MainListPage : DynamicListPage,
     IRecipient<ClearSearchMessage>,
     IRecipient<UpdateFallbackItemsMessage>, IDisposable
 {
@@ -33,18 +32,13 @@ public sealed partial class MainListPage : DynamicListPage,
     private readonly AliasManager _aliasManager;
     private readonly SettingsModel _settings;
     private readonly AppStateModel _appStateModel;
-    private readonly ScoringFunction<IListItem> _scoringFunction;
-    private readonly ScoringFunction<IListItem> _fallbackScoringFunction;
-    private readonly IFuzzyMatcherProvider _fuzzyMatcherProvider;
-
-    private RoScored<IListItem>[]? _filteredItems;
-    private RoScored<IListItem>[]? _filteredApps;
+    private List<Scored<IListItem>>? _filteredItems;
+    private List<Scored<IListItem>>? _filteredApps;
 
     // Keep as IEnumerable for deferred execution. Fallback item titles are updated
     // asynchronously, so scoring must happen lazily when GetItems is called.
-    private IEnumerable<RoScored<IListItem>>? _scoredFallbackItems;
-    private IEnumerable<RoScored<IListItem>>? _fallbackItems;
-
+    private IEnumerable<Scored<IListItem>>? _scoredFallbackItems;
+    private IEnumerable<Scored<IListItem>>? _fallbackItems;
     private bool _includeApps;
     private bool _filteredItemsIncludesApps;
     private int _appResultLimit = 10;
@@ -54,12 +48,7 @@ public sealed partial class MainListPage : DynamicListPage,
 
     private CancellationTokenSource? _cancellationTokenSource;
 
-    public MainListPage(
-        TopLevelCommandManager topLevelCommandManager,
-        SettingsModel settings,
-        AliasManager aliasManager,
-        AppStateModel appStateModel,
-        IFuzzyMatcherProvider fuzzyMatcherProvider)
+    public MainListPage(TopLevelCommandManager topLevelCommandManager, SettingsModel settings, AliasManager aliasManager, AppStateModel appStateModel)
     {
         Title = Resources.builtin_home_name;
         Icon = IconHelpers.FromRelativePath("Assets\\StoreLogo.scale-200.png");
@@ -69,10 +58,6 @@ public sealed partial class MainListPage : DynamicListPage,
         _aliasManager = aliasManager;
         _appStateModel = appStateModel;
         _tlcManager = topLevelCommandManager;
-        _fuzzyMatcherProvider = fuzzyMatcherProvider;
-        _scoringFunction = (in query, item) => ScoreTopLevelItem(in query, item, _appStateModel.RecentCommands, _fuzzyMatcherProvider.Current);
-        _fallbackScoringFunction = (in _, item) => ScoreFallbackItem(item, _settings.FallbackRanks);
-
         _tlcManager.PropertyChanged += TlcManager_PropertyChanged;
         _tlcManager.TopLevelCommands.CollectionChanged += Commands_CollectionChanged;
 
@@ -205,7 +190,8 @@ public sealed partial class MainListPage : DynamicListPage,
 
     public override void UpdateSearchText(string oldSearch, string newSearch)
     {
-        var stopwatch = Stopwatch.StartNew();
+        var timer = new Stopwatch();
+        timer.Start();
 
         _cancellationTokenSource?.Cancel();
         _cancellationTokenSource?.Dispose();
@@ -368,14 +354,15 @@ public sealed partial class MainListPage : DynamicListPage,
 
                 if (_includeApps)
                 {
-                    var allNewApps = AllAppsCommandProvider.Page.GetItems().Cast<AppListItem>().ToList();
+                    var allNewApps = AllAppsCommandProvider.Page.GetItems().ToList();
 
                     // We need to remove pinned apps from allNewApps so they don't show twice.
                     var pinnedApps = PinnedAppsManager.Instance.GetPinnedAppIdentifiers();
 
                     if (pinnedApps.Length > 0)
                     {
-                        newApps = allNewApps.Where(w => pinnedApps.IndexOf(w.AppIdentifier) < 0);
+                        newApps = allNewApps.Where(w =>
+                            pinnedApps.IndexOf(((AppListItem)w).AppIdentifier) < 0);
                     }
                     else
                     {
@@ -389,10 +376,11 @@ public sealed partial class MainListPage : DynamicListPage,
                 }
             }
 
-            var searchQuery = _fuzzyMatcherProvider.Current.PrecomputeQuery(SearchText);
+            var history = _appStateModel.RecentCommands!;
+            Func<string, IListItem, int> scoreItem = (a, b) => { return ScoreTopLevelItem(a, b, history); };
 
             // Produce a list of everything that matches the current filter.
-            _filteredItems = InternalListHelpers.FilterListWithScores(newFilteredItems, searchQuery, _scoringFunction);
+            _filteredItems = [.. ListHelpers.FilterListWithScores<IListItem>(newFilteredItems ?? [], SearchText, scoreItem)];
 
             if (token.IsCancellationRequested)
             {
@@ -400,14 +388,21 @@ public sealed partial class MainListPage : DynamicListPage,
             }
 
             IEnumerable<IListItem> newFallbacksForScoring = commands.Where(s => s.IsFallback && globalFallbacks.Contains(s.Id));
-            _scoredFallbackItems = InternalListHelpers.FilterListWithScores(newFallbacksForScoring, searchQuery, _scoringFunction);
 
             if (token.IsCancellationRequested)
             {
                 return;
             }
 
-            _fallbackItems = InternalListHelpers.FilterListWithScores<IListItem>(newFallbacks ?? [], searchQuery, _fallbackScoringFunction);
+            _scoredFallbackItems = ListHelpers.FilterListWithScores<IListItem>(newFallbacksForScoring ?? [], SearchText, scoreItem);
+
+            if (token.IsCancellationRequested)
+            {
+                return;
+            }
+
+            Func<string, IListItem, int> scoreFallbackItem = (a, b) => { return ScoreFallbackItem(a, b, _settings.FallbackRanks); };
+            _fallbackItems = [.. ListHelpers.FilterListWithScores<IListItem>(newFallbacks ?? [], SearchText, scoreFallbackItem)];
 
             if (token.IsCancellationRequested)
             {
@@ -417,7 +412,18 @@ public sealed partial class MainListPage : DynamicListPage,
             // Produce a list of filtered apps with the appropriate limit
             if (newApps.Any())
             {
-                _filteredApps = InternalListHelpers.FilterListWithScores(newApps, searchQuery, _scoringFunction);
+                var scoredApps = ListHelpers.FilterListWithScores<IListItem>(newApps, SearchText, scoreItem);
+
+                if (token.IsCancellationRequested)
+                {
+                    return;
+                }
+
+                // We'll apply this limit in the GetItems method after merging with commands
+                // but we need to know the limit now to avoid re-scoring apps
+                var appLimit = AllAppsCommandProvider.TopLevelResultLimit;
+
+                _filteredApps = [.. scoredApps];
 
                 if (token.IsCancellationRequested)
                 {
@@ -425,15 +431,10 @@ public sealed partial class MainListPage : DynamicListPage,
                 }
             }
 
-            var filterDoneTimestamp = stopwatch.ElapsedMilliseconds;
-            Logger.LogDebug($"Filter with '{newSearch}' in {filterDoneTimestamp}ms");
-
             RaiseItemsChanged();
 
-            var listPageUpdatedTimestamp = stopwatch.ElapsedMilliseconds;
-            Logger.LogDebug($"Render items with '{newSearch}' in {listPageUpdatedTimestamp}ms /d {listPageUpdatedTimestamp - filterDoneTimestamp}ms");
-
-            stopwatch.Stop();
+            timer.Stop();
+            Logger.LogDebug($"Filter with '{newSearch}' in {timer.ElapsedMilliseconds}ms");
         }
     }
 
@@ -477,11 +478,7 @@ public sealed partial class MainListPage : DynamicListPage,
     // Almost verbatim ListHelpers.ScoreListItem, but also accounting for the
     // fact that we want fallback handlers down-weighted, so that they don't
     // _always_ show up first.
-    internal static int ScoreTopLevelItem(
-        in FuzzyQuery query,
-        IListItem topLevelOrAppItem,
-        IRecentCommandsManager history,
-        IPrecomputedFuzzyMatcher precomputedFuzzyMatcher)
+    internal static int ScoreTopLevelItem(string query, IListItem topLevelOrAppItem, IRecentCommandsManager history)
     {
         var title = topLevelOrAppItem.Title;
         if (string.IsNullOrWhiteSpace(title))
@@ -489,80 +486,94 @@ public sealed partial class MainListPage : DynamicListPage,
             return 0;
         }
 
+        var isWhiteSpace = string.IsNullOrWhiteSpace(query);
+
         var isFallback = false;
         var isAliasSubstringMatch = false;
         var isAliasMatch = false;
         var id = IdForTopLevelOrAppItem(topLevelOrAppItem);
 
-        FuzzyTarget? extensionDisplayNameTarget = null;
+        var extensionDisplayName = string.Empty;
         if (topLevelOrAppItem is TopLevelViewModel topLevel)
         {
             isFallback = topLevel.IsFallback;
-            extensionDisplayNameTarget = topLevel.GetExtensionNameTarget(precomputedFuzzyMatcher);
-
             if (topLevel.HasAlias)
             {
                 var alias = topLevel.AliasText;
-                isAliasMatch = alias == query.Original;
-                isAliasSubstringMatch = isAliasMatch || alias.StartsWith(query.Original, StringComparison.CurrentCultureIgnoreCase);
+                isAliasMatch = alias == query;
+                isAliasSubstringMatch = isAliasMatch || alias.StartsWith(query, StringComparison.CurrentCultureIgnoreCase);
             }
+
+            extensionDisplayName = topLevel.ExtensionHost?.Extension?.PackageDisplayName ?? string.Empty;
         }
 
-        // Handle whitespace query separately - FuzzySearch doesn't handle it well
-        if (string.IsNullOrWhiteSpace(query.Original))
+        // StringMatcher.FuzzySearch will absolutely BEEF IT if you give it a
+        // whitespace-only query.
+        //
+        // in that scenario, we'll just use a simple string contains for the
+        // query. Maybe someone is really looking for things with a space in
+        // them, I don't know.
+
+        // Title:
+        // * whitespace query: 1 point
+        // * otherwise full weight match
+        var nameMatch = isWhiteSpace ?
+            (title.Contains(query) ? 1 : 0) :
+               FuzzyStringMatcher.ScoreFuzzy(query, title);
+
+        // Subtitle:
+        // * whitespace query: 1/2 point
+        // * otherwise ~half weight match. Minus a bit, because subtitles tend to be longer
+        var descriptionMatch = isWhiteSpace ?
+            (topLevelOrAppItem.Subtitle.Contains(query) ? .5 : 0) :
+            (FuzzyStringMatcher.ScoreFuzzy(query, topLevelOrAppItem.Subtitle) - 4) / 2.0;
+
+        // Extension title: despite not being visible, give the extension name itself some weight
+        // * whitespace query: 0 points
+        // * otherwise more weight than a subtitle, but not much
+        var extensionTitleMatch = isWhiteSpace ? 0 : FuzzyStringMatcher.ScoreFuzzy(query, extensionDisplayName) / 1.5;
+
+        var scores = new[]
         {
-            return ScoreWhitespaceQuery(query.Original, title, topLevelOrAppItem.Subtitle, isFallback);
-        }
+             nameMatch,
+             descriptionMatch,
+             isFallback ? 1 : 0, // Always give fallbacks a chance
+        };
+        var max = scores.Max();
 
-        // Get precomputed targets
-        var (titleTarget, subtitleTarget) = topLevelOrAppItem is IPrecomputedListItem precomputedItem
-            ? (precomputedItem.GetTitleTarget(precomputedFuzzyMatcher), precomputedItem.GetSubtitleTarget(precomputedFuzzyMatcher))
-            : (precomputedFuzzyMatcher.PrecomputeTarget(title), precomputedFuzzyMatcher.PrecomputeTarget(topLevelOrAppItem.Subtitle));
-
-        // Score components
-        var nameScore = precomputedFuzzyMatcher.Score(query, titleTarget);
-        var descriptionScore = (precomputedFuzzyMatcher.Score(query, subtitleTarget) - 4) / 2.0;
-        var extensionScore = extensionDisplayNameTarget is { } extTarget ? precomputedFuzzyMatcher.Score(query, extTarget) / 1.5 : 0;
-
-        // Take best match from title/description/fallback, then add extension score
-        // Extension adds to max so items matching both title AND extension bubble up
-        var baseScore = Math.Max(Math.Max(nameScore, descriptionScore), isFallback ? 1 : 0);
-        var matchScore = baseScore + extensionScore;
+        // _Add_ the extension name. This will bubble items that match both
+        // title and extension name up above ones that just match title.
+        // e.g. "git" will up-weight "GitHub searches" from the GitHub extension
+        // above "git" from "whatever"
+        max = max + extensionTitleMatch;
 
         // Apply a penalty to fallback items so they rank below direct matches.
         // Fallbacks that dynamically match queries (like RDP connections) should
         // appear after apps and direct command matches.
-        if (isFallback && matchScore > 1)
+        if (isFallback && max > 1)
         {
             // Reduce fallback scores by 50% to prioritize direct matches
-            matchScore = matchScore * 0.5;
+            max = max * 0.5;
         }
 
-        // Alias matching: exact match is overwhelming priority, substring match adds a small boost
-        var aliasBoost = isAliasMatch ? 9001 : (isAliasSubstringMatch ? 1 : 0);
-        var totalMatch = matchScore + aliasBoost;
+        var matchSomething = max
+            + (isAliasMatch ? 9001 : (isAliasSubstringMatch ? 1 : 0));
 
-        // Apply scaling and history boost only if we matched something real
-        var finalScore = totalMatch * 10;
-        if (totalMatch > 0)
+        // If we matched title, subtitle, or alias (something real), then
+        // here we add the recent command weight boost
+        //
+        // Otherwise something like `x` will still match everything you've run before
+        var finalScore = matchSomething * 10;
+        if (matchSomething > 0)
         {
-            finalScore += history.GetCommandHistoryWeight(id);
+            var recentWeightBoost = history.GetCommandHistoryWeight(id);
+            finalScore += recentWeightBoost;
         }
 
         return (int)finalScore;
     }
 
-    private static int ScoreWhitespaceQuery(string query, string title, string subtitle, bool isFallback)
-    {
-        // Simple contains check for whitespace queries
-        var nameMatch = title.Contains(query, StringComparison.Ordinal) ? 1.0 : 0;
-        var descriptionMatch = subtitle.Contains(query, StringComparison.Ordinal) ? 0.5 : 0;
-        var baseScore = Math.Max(Math.Max(nameMatch, descriptionMatch), isFallback ? 1 : 0);
-
-        return (int)(baseScore * 10);
-    }
-
-    private static int ScoreFallbackItem(IListItem topLevelOrAppItem, string[] fallbackRanks)
+    internal static int ScoreFallbackItem(string query, IListItem topLevelOrAppItem, string[] fallbackRanks)
     {
         // Default to 1 so it always shows in list.
         var finalScore = 1;

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Commands/MainListPageResultFactory.cs

@@ -4,7 +4,6 @@
 
 #pragma warning disable IDE0007 // Use implicit type
 
-using Microsoft.CmdPal.Core.Common.Helpers;
 using Microsoft.CommandPalette.Extensions;
 using Microsoft.CommandPalette.Extensions.Toolkit;
 
@@ -17,10 +16,10 @@ internal static class MainListPageResultFactory
     /// applying an application result limit and filtering fallback items as needed.
     /// </summary>
     public static IListItem[] Create(
-        IList<RoScored<IListItem>>? filteredItems,
-        IList<RoScored<IListItem>>? scoredFallbackItems,
-        IList<RoScored<IListItem>>? filteredApps,
-        IList<RoScored<IListItem>>? fallbackItems,
+        IList<Scored<IListItem>>? filteredItems,
+        IList<Scored<IListItem>>? scoredFallbackItems,
+        IList<Scored<IListItem>>? filteredApps,
+        IList<Scored<IListItem>>? fallbackItems,
         int appResultLimit)
     {
         if (appResultLimit < 0)
@@ -148,7 +147,7 @@ internal static class MainListPageResultFactory
         return result;
     }
 
-    private static int GetNonEmptyFallbackItemsCount(IList<RoScored<IListItem>>? fallbackItems)
+    private static int GetNonEmptyFallbackItemsCount(IList<Scored<IListItem>>? fallbackItems)
     {
         int fallbackItemsCount = 0;
 

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/MainWindowViewModel.cs

@@ -22,7 +22,6 @@ public partial class MainWindowViewModel : ObservableObject, IDisposable
     public partial Stretch BackgroundImageStretch { get; private set; } = Stretch.Fill;
 
     [ObservableProperty]
-    [NotifyPropertyChangedFor(nameof(EffectiveImageOpacity))]
     public partial double BackgroundImageOpacity { get; private set; }
 
     [ObservableProperty]
@@ -40,30 +39,6 @@ public partial class MainWindowViewModel : ObservableObject, IDisposable
     [ObservableProperty]
     public partial bool ShowBackgroundImage { get; private set; }
 
-    [ObservableProperty]
-    [NotifyPropertyChangedFor(nameof(EffectiveBackdropStyle))]
-    [NotifyPropertyChangedFor(nameof(EffectiveImageOpacity))]
-    public partial BackdropStyle BackdropStyle { get; private set; }
-
-    [ObservableProperty]
-    [NotifyPropertyChangedFor(nameof(EffectiveBackdropStyle))]
-    [NotifyPropertyChangedFor(nameof(EffectiveImageOpacity))]
-    public partial float BackdropOpacity { get; private set; } = 1.0f;
-
-    // Returns null when no transparency needed (BlurImageControl uses this to decide source type)
-    public BackdropStyle? EffectiveBackdropStyle =>
-        BackdropStyle == BackdropStyle.Clear ||
-        BackdropStyle == BackdropStyle.Mica ||
-        BackdropOpacity < 1.0f
-            ? BackdropStyle
-            : null;
-
-    // When transparency is enabled, use square root curve so image stays visible longer as backdrop fades
-    public double EffectiveImageOpacity =>
-        EffectiveBackdropStyle is not null
-            ? BackgroundImageOpacity * Math.Sqrt(BackdropOpacity)
-            : BackgroundImageOpacity;
-
     public MainWindowViewModel(IThemeService themeService)
     {
         _themeService = themeService;
@@ -83,9 +58,6 @@ public partial class MainWindowViewModel : ObservableObject, IDisposable
             BackgroundImageTintIntensity = _themeService.Current.TintIntensity;
             BackgroundImageBlurAmount = _themeService.Current.BlurAmount;
 
-            BackdropStyle = _themeService.Current.BackdropParameters.Style;
-            BackdropOpacity = _themeService.Current.BackdropOpacity;
-
             ShowBackgroundImage = BackgroundImageSource != null;
         });
     }

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/PreviewBrushKind.cs

@@ -1,21 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.UI.ViewModels;
-
-/// <summary>
-/// Specifies the brush type to use for backdrop preview approximation.
-/// </summary>
-public enum PreviewBrushKind
-{
-    /// <summary>
-    /// SolidColorBrush with computed alpha.
-    /// </summary>
-    Solid,
-
-    /// <summary>
-    /// AcrylicBrush with blur effect.
-    /// </summary>
-    Acrylic,
-}

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Services/AcrylicBackdropParameters.cs

@@ -0,0 +1,9 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using Windows.UI;
+
+namespace Microsoft.CmdPal.UI.ViewModels.Services;
+
+public sealed record AcrylicBackdropParameters(Color TintColor, Color FallbackColor, float TintOpacity, float LuminosityOpacity);

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Services/BackdropParameters.cs

@@ -1,29 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using Windows.UI;
-
-namespace Microsoft.CmdPal.UI.ViewModels.Services;
-
-/// <summary>
-/// Parameters for configuring the window backdrop appearance.
-/// </summary>
-/// <param name="TintColor">The tint color applied to the backdrop.</param>
-/// <param name="FallbackColor">The fallback color when backdrop effects are unavailable.</param>
-/// <param name="EffectiveOpacity">
-/// The effective opacity for the backdrop, pre-computed by the theme provider.
-/// For Acrylic style: TintOpacity * BackdropOpacity.
-/// For Clear style: BackdropOpacity (controls the solid color alpha).
-/// </param>
-/// <param name="EffectiveLuminosityOpacity">
-/// The effective luminosity opacity for Acrylic backdrop, pre-computed by the theme provider.
-/// Computed as LuminosityOpacity * BackdropOpacity.
-/// </param>
-/// <param name="Style">The backdrop style (Acrylic or Clear).</param>
-public sealed record BackdropParameters(
-    Color TintColor,
-    Color FallbackColor,
-    float EffectiveOpacity,
-    float EffectiveLuminosityOpacity,
-    BackdropStyle Style = BackdropStyle.Acrylic);

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/Services/ThemeSnapshot.cs

@@ -51,23 +51,12 @@ public sealed class ThemeSnapshot
     public required double BackgroundImageOpacity { get; init; }
 
     /// <summary>
-    /// Gets the effective backdrop parameters based on current settings and theme.
+    /// Gets the effective acrylic backdrop parameters based on current settings and theme.
     /// </summary>
-    /// <returns>The resolved <c>BackdropParameters</c> to apply.</returns>
-    public required BackdropParameters BackdropParameters { get; init; }
-
-    /// <summary>
-    /// Gets the raw backdrop opacity setting (0-1 range).
-    /// Used for determining if transparency is enabled and for image opacity calculations.
-    /// </summary>
-    public required float BackdropOpacity { get; init; }
+    /// <returns>The resolved <c>AcrylicBackdropParameters</c> to apply.</returns>
+    public required AcrylicBackdropParameters BackdropParameters { get; init; }
 
     public required int BlurAmount { get; init; }
 
     public required float BackgroundBrightness { get; init; }
-
-    /// <summary>
-    /// Gets whether colorization is active (accent color, custom color, or image mode).
-    /// </summary>
-    public required bool HasColorization { get; init; }
 }

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/SettingsModel.cs

@@ -74,8 +74,6 @@ public partial class SettingsModel : ObservableObject
 
     public int CustomThemeColorIntensity { get; set; } = 100;
 
-    public int BackgroundImageTintIntensity { get; set; }
-
     public int BackgroundImageOpacity { get; set; } = 20;
 
     public int BackgroundImageBlurAmount { get; set; }
@@ -86,10 +84,6 @@ public partial class SettingsModel : ObservableObject
 
     public string? BackgroundImagePath { get; set; }
 
-    public BackdropStyle BackdropStyle { get; set; }
-
-    public int BackdropOpacity { get; set; } = 100;
-
     // END SETTINGS
     ///////////////////////////////////////////////////////////////////////////
 

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/TopLevelViewModel.cs

@@ -3,11 +3,8 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Collections.ObjectModel;
-using System.Diagnostics;
 using CommunityToolkit.Mvvm.ComponentModel;
 using ManagedCommon;
-using Microsoft.CmdPal.Core.Common.Helpers;
-using Microsoft.CmdPal.Core.Common.Text;
 using Microsoft.CmdPal.Core.ViewModels;
 using Microsoft.CmdPal.Core.ViewModels.Messages;
 using Microsoft.CmdPal.UI.ViewModels.Settings;
@@ -19,8 +16,7 @@ using WyHash;
 
 namespace Microsoft.CmdPal.UI.ViewModels;
 
-[DebuggerDisplay($"{{{nameof(GetDebuggerDisplay)}(),nq}}")]
-public sealed partial class TopLevelViewModel : ObservableObject, IListItem, IExtendedAttributesProvider, IPrecomputedListItem
+public sealed partial class TopLevelViewModel : ObservableObject, IListItem, IExtendedAttributesProvider
 {
     private readonly SettingsModel _settings;
     private readonly ProviderSettings _providerSettings;
@@ -38,10 +34,6 @@ public sealed partial class TopLevelViewModel : ObservableObject, IListItem, IEx
     private HotkeySettings? _hotkey;
     private IIconInfo? _initialIcon;
 
-    private FuzzyTargetCache _titleCache;
-    private FuzzyTargetCache _subtitleCache;
-    private FuzzyTargetCache _extensionNameCache;
-
     private CommandAlias? Alias { get; set; }
 
     public bool IsFallback { get; private set; }
@@ -184,8 +176,6 @@ public sealed partial class TopLevelViewModel : ObservableObject, IListItem, IEx
         }
     }
 
-    public string ExtensionName => ExtensionHost.GetExtensionDisplayName() ?? string.Empty;
-
     public TopLevelViewModel(
         CommandItemViewModel item,
         bool isFallback,
@@ -240,15 +230,6 @@ public sealed partial class TopLevelViewModel : ObservableObject, IListItem, IEx
         {
             PropChanged?.Invoke(this, new PropChangedEventArgs(e.PropertyName));
 
-            if (e.PropertyName is nameof(CommandItemViewModel.Title) or nameof(CommandItemViewModel.Name))
-            {
-                _titleCache.Invalidate();
-            }
-            else if (e.PropertyName is nameof(CommandItemViewModel.Subtitle))
-            {
-                _subtitleCache.Invalidate();
-            }
-
             if (e.PropertyName is "IsInitialized" or nameof(CommandItemViewModel.Command))
             {
                 GenerateId();
@@ -439,18 +420,4 @@ public sealed partial class TopLevelViewModel : ObservableObject, IListItem, IEx
             [WellKnownExtensionAttributes.DataPackage] = _commandItemViewModel?.DataPackage,
         };
     }
-
-    public FuzzyTarget GetTitleTarget(IPrecomputedFuzzyMatcher matcher)
-        => _titleCache.GetOrUpdate(matcher, Title);
-
-    public FuzzyTarget GetSubtitleTarget(IPrecomputedFuzzyMatcher matcher)
-        => _subtitleCache.GetOrUpdate(matcher, Subtitle);
-
-    public FuzzyTarget GetExtensionNameTarget(IPrecomputedFuzzyMatcher matcher)
-        => _extensionNameCache.GetOrUpdate(matcher, ExtensionName);
-
-    private string GetDebuggerDisplay()
-    {
-        return ToString();
-    }
 }

src/modules/cmdpal/Microsoft.CmdPal.UI/App.xaml.cs

@@ -6,14 +6,12 @@ using ManagedCommon;
 using Microsoft.CmdPal.Core.Common;
 using Microsoft.CmdPal.Core.Common.Helpers;
 using Microsoft.CmdPal.Core.Common.Services;
-using Microsoft.CmdPal.Core.Common.Text;
 using Microsoft.CmdPal.Core.ViewModels;
 using Microsoft.CmdPal.Ext.Apps;
 using Microsoft.CmdPal.Ext.Bookmarks;
 using Microsoft.CmdPal.Ext.Calc;
 using Microsoft.CmdPal.Ext.ClipboardHistory;
 using Microsoft.CmdPal.Ext.Indexer;
-using Microsoft.CmdPal.Ext.PerformanceMonitor;
 using Microsoft.CmdPal.Ext.Registry;
 using Microsoft.CmdPal.Ext.RemoteDesktop;
 using Microsoft.CmdPal.Ext.Shell;
@@ -69,13 +67,11 @@ public partial class App : Application, IDisposable
     /// </summary>
     public App()
     {
-        var appInfoService = new ApplicationInfoService();
-
 #if !CMDPAL_DISABLE_GLOBAL_ERROR_HANDLER
-        _globalErrorHandler.Register(this, GlobalErrorHandler.Options.Default, appInfoService);
+        _globalErrorHandler.Register(this, GlobalErrorHandler.Options.Default);
 #endif
 
-        Services = ConfigureServices(appInfoService);
+        Services = ConfigureServices();
 
         IconCacheProvider.Initialize(Services);
 
@@ -96,9 +92,6 @@ public partial class App : Application, IDisposable
         // This way, log statements from the core project will be captured by the PT logs
         var logWrapper = new LogWrapper();
         CoreLogger.InitializeLogger(logWrapper);
-
-        // Now that CoreLogger is initialized, initialize the logger delegate in ApplicationInfoService
-        appInfoService.SetLogDirectory(() => Logger.CurrentVersionLogDirectoryPath);
     }
 
     /// <summary>
@@ -116,7 +109,7 @@ public partial class App : Application, IDisposable
     /// <summary>
     /// Configures the services for the application
     /// </summary>
-    private static ServiceProvider ConfigureServices(IApplicationInfoService appInfoService)
+    private static ServiceProvider ConfigureServices()
     {
         // TODO: It's in the Labs feed, but we can use Sergio's AOT-friendly source generator for this: https://github.com/CommunityToolkit/Labs-Windows/discussions/463
         ServiceCollection services = new();
@@ -127,7 +120,7 @@ public partial class App : Application, IDisposable
 
         AddBuiltInCommands(services);
 
-        AddCoreServices(services, appInfoService);
+        AddCoreServices(services);
 
         AddUIServices(services, dispatcherQueue);
 
@@ -178,7 +171,6 @@ public partial class App : Application, IDisposable
         services.AddSingleton<ICommandProvider, TimeDateCommandsProvider>();
         services.AddSingleton<ICommandProvider, SystemCommandExtensionProvider>();
         services.AddSingleton<ICommandProvider, RemoteDesktopCommandProvider>();
-        services.AddSingleton<ICommandProvider, PerformanceMonitorCommandsProvider>();
     }
 
     private static void AddUIServices(ServiceCollection services, DispatcherQueue dispatcherQueue)
@@ -204,11 +196,9 @@ public partial class App : Application, IDisposable
         services.AddIconServices(dispatcherQueue);
     }
 
-    private static void AddCoreServices(ServiceCollection services, IApplicationInfoService appInfoService)
+    private static void AddCoreServices(ServiceCollection services)
     {
         // Core services
-        services.AddSingleton(appInfoService);
-
         services.AddSingleton<IExtensionService, ExtensionService>();
         services.AddSingleton<IRunHistoryService, RunHistoryService>();
 
@@ -216,9 +206,6 @@ public partial class App : Application, IDisposable
         services.AddSingleton<IAppHostService, PowerToysAppHostService>();
         services.AddSingleton<ITelemetryService, TelemetryForwarder>();
 
-        services.AddSingleton<IFuzzyMatcherProvider, FuzzyMatcherProvider>(
-            _ => new FuzzyMatcherProvider(new PrecomputedFuzzyMatcherOptions(), new PinyinFuzzyMatcherOptions()));
-
         // ViewModels
         services.AddSingleton<ShellViewModel>();
         services.AddSingleton<IPageViewModelFactoryService, CommandPalettePageViewModelFactory>();

src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/BlurImageControl.cs

@@ -288,6 +288,7 @@ internal sealed partial class BlurImageControl : Control
         _effectBrush?.Dispose();
         _effectBrush = effectFactory.CreateBrush();
 
+        // Set initial source
         if (ImageSource is not null)
         {
             _imageBrush ??= _compositor.CreateSurfaceBrush();

src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/CommandPalettePreview.xaml

@@ -16,38 +16,24 @@
         CornerRadius="8"
         Translation="0,0,8">
         <Grid>
-            <!--  Clear style: SolidColorBrush with computed alpha (window backdrop)  -->
             <Border
                 HorizontalAlignment="Stretch"
                 VerticalAlignment="Stretch"
                 BorderBrush="{ThemeResource SurfaceStrokeColorDefaultBrush}"
                 BorderThickness="1"
-                Visibility="{x:Bind ClearVisibility, Mode=OneWay}">
-                <Border.Background>
-                    <SolidColorBrush Color="{x:Bind EffectiveClearColor, Mode=OneWay}" />
-                </Border.Background>
-            </Border>
-            <!--  Acrylic/Mica style: AcrylicBrush with effective opacity (window backdrop)  -->
-            <Border
-                HorizontalAlignment="Stretch"
-                VerticalAlignment="Stretch"
-                BorderBrush="{ThemeResource SurfaceStrokeColorDefaultBrush}"
-                BorderThickness="1"
-                Visibility="{x:Bind AcrylicVisibility, Mode=OneWay}">
+                Visibility="{x:Bind h:BindTransformers.NegateVisibility(ShowBackgroundImage), Mode=OneWay}">
                 <Border.Background>
                     <AcrylicBrush
                         FallbackColor="{x:Bind PreviewBackgroundColor, Mode=OneWay}"
                         TintColor="{x:Bind PreviewBackgroundColor, Mode=OneWay}"
-                        TintOpacity="{x:Bind PreviewEffectiveOpacity, Mode=OneWay}" />
+                        TintOpacity="{x:Bind PreviewBackgroundOpacity, Mode=OneWay}" />
                 </Border.Background>
             </Border>
-            <!--  Background image (inside window, on top of backdrop)  -->
             <local:BlurImageControl
                 HorizontalAlignment="Stretch"
                 VerticalAlignment="Stretch"
                 BlurAmount="{x:Bind PreviewBackgroundImageBlurAmount, Mode=OneWay}"
                 ImageBrightness="{x:Bind PreviewBackgroundImageBrightness, Mode=OneWay}"
-                ImageOpacity="{x:Bind PreviewBackgroundImageOpacity, Mode=OneWay}"
                 ImageSource="{x:Bind PreviewBackgroundImageSource, Mode=OneWay}"
                 ImageStretch="{x:Bind ToStretch(PreviewBackgroundImageFit), Mode=OneWay}"
                 IsHitTestVisible="False"

src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/CommandPalettePreview.xaml.cs

@@ -12,11 +12,13 @@ namespace Microsoft.CmdPal.UI.Controls;
 
 public sealed partial class CommandPalettePreview : UserControl
 {
-    public static readonly DependencyProperty PreviewBackgroundColorProperty = DependencyProperty.Register(nameof(PreviewBackgroundColor), typeof(Color), typeof(CommandPalettePreview), new PropertyMetadata(default(Color), OnBackdropPropertyChanged));
+    public static readonly DependencyProperty PreviewBackgroundOpacityProperty = DependencyProperty.Register(nameof(PreviewBackgroundOpacity), typeof(double), typeof(CommandPalettePreview), new PropertyMetadata(0d));
 
-    public static readonly DependencyProperty PreviewBackgroundImageSourceProperty = DependencyProperty.Register(nameof(PreviewBackgroundImageSource), typeof(ImageSource), typeof(CommandPalettePreview), new PropertyMetadata(null, OnBackgroundImageSourceChanged));
+    public static readonly DependencyProperty PreviewBackgroundColorProperty = DependencyProperty.Register(nameof(PreviewBackgroundColor), typeof(Color), typeof(CommandPalettePreview), new PropertyMetadata(default(Color)));
 
-    public static readonly DependencyProperty PreviewBackgroundImageOpacityProperty = DependencyProperty.Register(nameof(PreviewBackgroundImageOpacity), typeof(double), typeof(CommandPalettePreview), new PropertyMetadata(1.0));
+    public static readonly DependencyProperty PreviewBackgroundImageSourceProperty = DependencyProperty.Register(nameof(PreviewBackgroundImageSource), typeof(ImageSource), typeof(CommandPalettePreview), new PropertyMetadata(null, PropertyChangedCallback));
+
+    public static readonly DependencyProperty PreviewBackgroundImageOpacityProperty = DependencyProperty.Register(nameof(PreviewBackgroundImageOpacity), typeof(int), typeof(CommandPalettePreview), new PropertyMetadata(0));
 
     public static readonly DependencyProperty PreviewBackgroundImageFitProperty = DependencyProperty.Register(nameof(PreviewBackgroundImageFit), typeof(BackgroundImageFit), typeof(CommandPalettePreview), new PropertyMetadata(default(BackgroundImageFit)));
 
@@ -28,18 +30,7 @@ public sealed partial class CommandPalettePreview : UserControl
 
     public static readonly DependencyProperty PreviewBackgroundImageTintIntensityProperty = DependencyProperty.Register(nameof(PreviewBackgroundImageTintIntensity), typeof(int), typeof(CommandPalettePreview), new PropertyMetadata(0));
 
-    public static readonly DependencyProperty ShowBackgroundImageProperty = DependencyProperty.Register(nameof(ShowBackgroundImage), typeof(Visibility), typeof(CommandPalettePreview), new PropertyMetadata(Visibility.Collapsed, OnVisibilityPropertyChanged));
-
-    public static readonly DependencyProperty PreviewBackdropStyleProperty = DependencyProperty.Register(nameof(PreviewBackdropStyle), typeof(BackdropStyle?), typeof(CommandPalettePreview), new PropertyMetadata(null, OnVisibilityPropertyChanged));
-
-    public static readonly DependencyProperty PreviewEffectiveOpacityProperty = DependencyProperty.Register(nameof(PreviewEffectiveOpacity), typeof(double), typeof(CommandPalettePreview), new PropertyMetadata(1.0, OnBackdropPropertyChanged));
-
-    // Computed read-only dependency properties
-    public static readonly DependencyProperty EffectiveClearColorProperty = DependencyProperty.Register(nameof(EffectiveClearColor), typeof(Color), typeof(CommandPalettePreview), new PropertyMetadata(default(Color)));
-
-    public static readonly DependencyProperty AcrylicVisibilityProperty = DependencyProperty.Register(nameof(AcrylicVisibility), typeof(Visibility), typeof(CommandPalettePreview), new PropertyMetadata(Visibility.Visible));
-
-    public static readonly DependencyProperty ClearVisibilityProperty = DependencyProperty.Register(nameof(ClearVisibility), typeof(Visibility), typeof(CommandPalettePreview), new PropertyMetadata(Visibility.Collapsed));
+    public static readonly DependencyProperty ShowBackgroundImageProperty = DependencyProperty.Register(nameof(ShowBackgroundImage), typeof(Visibility), typeof(CommandPalettePreview), new PropertyMetadata(Visibility.Collapsed));
 
     public BackgroundImageFit PreviewBackgroundImageFit
     {
@@ -47,6 +38,12 @@ public sealed partial class CommandPalettePreview : UserControl
         set { SetValue(PreviewBackgroundImageFitProperty, value); }
     }
 
+    public double PreviewBackgroundOpacity
+    {
+        get { return (double)GetValue(PreviewBackgroundOpacityProperty); }
+        set { SetValue(PreviewBackgroundOpacityProperty, value); }
+    }
+
     public Color PreviewBackgroundColor
     {
         get { return (Color)GetValue(PreviewBackgroundColorProperty); }
@@ -59,10 +56,10 @@ public sealed partial class CommandPalettePreview : UserControl
         set { SetValue(PreviewBackgroundImageSourceProperty, value); }
     }
 
-    public double PreviewBackgroundImageOpacity
+    public int PreviewBackgroundImageOpacity
     {
-        get => (double)GetValue(PreviewBackgroundImageOpacityProperty);
-        set => SetValue(PreviewBackgroundImageOpacityProperty, value);
+        get { return (int)GetValue(PreviewBackgroundImageOpacityProperty); }
+        set { SetValue(PreviewBackgroundImageOpacityProperty, value); }
     }
 
     public double PreviewBackgroundImageBrightness
@@ -95,48 +92,12 @@ public sealed partial class CommandPalettePreview : UserControl
         set => SetValue(ShowBackgroundImageProperty, value);
     }
 
-    public BackdropStyle? PreviewBackdropStyle
-    {
-        get => (BackdropStyle?)GetValue(PreviewBackdropStyleProperty);
-        set => SetValue(PreviewBackdropStyleProperty, value);
-    }
-
-    /// <summary>
-    /// Gets or sets the effective opacity for the backdrop, pre-computed by the theme provider.
-    /// For Acrylic style: used directly as TintOpacity.
-    /// For Clear style: used to compute the alpha channel of the solid color.
-    /// </summary>
-    public double PreviewEffectiveOpacity
-    {
-        get => (double)GetValue(PreviewEffectiveOpacityProperty);
-        set => SetValue(PreviewEffectiveOpacityProperty, value);
-    }
-
-    // Computed read-only properties
-    public Color EffectiveClearColor
-    {
-        get => (Color)GetValue(EffectiveClearColorProperty);
-        private set => SetValue(EffectiveClearColorProperty, value);
-    }
-
-    public Visibility AcrylicVisibility
-    {
-        get => (Visibility)GetValue(AcrylicVisibilityProperty);
-        private set => SetValue(AcrylicVisibilityProperty, value);
-    }
-
-    public Visibility ClearVisibility
-    {
-        get => (Visibility)GetValue(ClearVisibilityProperty);
-        private set => SetValue(ClearVisibilityProperty, value);
-    }
-
     public CommandPalettePreview()
     {
         InitializeComponent();
     }
 
-    private static void OnBackgroundImageSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    private static void PropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
     {
         if (d is not CommandPalettePreview preview)
         {
@@ -146,46 +107,7 @@ public sealed partial class CommandPalettePreview : UserControl
         preview.ShowBackgroundImage = e.NewValue is ImageSource ? Visibility.Visible : Visibility.Collapsed;
     }
 
-    private static void OnBackdropPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-    {
-        if (d is not CommandPalettePreview preview)
-        {
-            return;
-        }
-
-        preview.UpdateComputedClearColor();
-    }
-
-    private static void OnVisibilityPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-    {
-        if (d is not CommandPalettePreview preview)
-        {
-            return;
-        }
-
-        preview.UpdateComputedVisibilityProperties();
-        preview.UpdateComputedClearColor();
-    }
-
-    private void UpdateComputedClearColor()
-    {
-        EffectiveClearColor = Color.FromArgb(
-            (byte)(PreviewEffectiveOpacity * 255),
-            PreviewBackgroundColor.R,
-            PreviewBackgroundColor.G,
-            PreviewBackgroundColor.B);
-    }
-
-    private void UpdateComputedVisibilityProperties()
-    {
-        var config = BackdropStyles.Get(PreviewBackdropStyle ?? BackdropStyle.Acrylic);
-
-        // Show backdrop effect based on style (on top of any background image)
-        AcrylicVisibility = config.PreviewBrush == PreviewBrushKind.Acrylic
-            ? Visibility.Visible : Visibility.Collapsed;
-        ClearVisibility = config.PreviewBrush == PreviewBrushKind.Solid
-            ? Visibility.Visible : Visibility.Collapsed;
-    }
+    private double ToOpacity(int value) => value / 100.0;
 
     private double ToTintIntensity(int value) => value / 100.0;
 

src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContextMenu.xaml.cs

@@ -4,11 +4,9 @@
 
 using CommunityToolkit.Mvvm.Messaging;
 using CommunityToolkit.WinUI;
-using Microsoft.CmdPal.Core.Common.Text;
 using Microsoft.CmdPal.Core.ViewModels;
 using Microsoft.CmdPal.Core.ViewModels.Messages;
 using Microsoft.CmdPal.UI.Messages;
-using Microsoft.Extensions.DependencyInjection;
 using Microsoft.UI.Input;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
@@ -23,19 +21,21 @@ public sealed partial class ContextMenu : UserControl,
     IRecipient<UpdateCommandBarMessage>,
     IRecipient<TryCommandKeybindingMessage>
 {
-    public ContextMenuViewModel ViewModel { get; }
+    public ContextMenuViewModel ViewModel { get; } = new();
 
     public ContextMenu()
     {
         this.InitializeComponent();
 
-        ViewModel = new ContextMenuViewModel(App.Current.Services.GetRequiredService<IFuzzyMatcherProvider>());
-        ViewModel.PropertyChanged += ViewModel_PropertyChanged;
-
         // RegisterAll isn't AOT compatible
         WeakReferenceMessenger.Default.Register<OpenContextMenuMessage>(this);
         WeakReferenceMessenger.Default.Register<UpdateCommandBarMessage>(this);
         WeakReferenceMessenger.Default.Register<TryCommandKeybindingMessage>(this);
+
+        if (ViewModel is not null)
+        {
+            ViewModel.PropertyChanged += ViewModel_PropertyChanged;
+        }
     }
 
     public void Receive(OpenContextMenuMessage message)

src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/DevRibbon.xaml

@@ -206,10 +206,9 @@
 
                                 <!--  More section  -->
                                 <TextBlock Style="{ThemeResource SettingsSectionHeaderTextBlockStyle}" Text="More" />
-                                <StackPanel Orientation="Horizontal" Spacing="8">
+                                <Border>
                                     <Button Command="{x:Bind ViewModel.OpenInternalToolsCommand}" Content="Open internal tools" />
-                                    <Button Command="{x:Bind ViewModel.ToggleDevRibbonVisibilityCommand}" Content="Hide me" />
-                                </StackPanel>
+                                </Border>
                             </StackPanel>
 
                             <!--  Footer  -->

src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/IconBox.cs

@@ -16,12 +16,12 @@ namespace Microsoft.CmdPal.UI.Controls;
 /// </summary>
 public partial class IconBox : ContentControl
 {
-    private const double DefaultIconFontSize = 16.0;
-
     private double _lastScale;
     private ElementTheme _lastTheme;
     private double _lastFontSize;
 
+    private const double DefaultIconFontSize = 16.0;
+
     /// <summary>
     /// Gets or sets the <see cref="IconSource"/> to display within the <see cref="IconBox"/>. Overwritten, if <see cref="SourceKey"/> is used instead.
     /// </summary>
@@ -62,12 +62,6 @@ public partial class IconBox : ContentControl
             {
                 Refresh();
             }
-#if DEBUG
-            if (_sourceRequested?.GetInvocationList().Length > 1)
-            {
-                Logger.LogWarning("There shouldn't be more than one handler for IconBox.SourceRequested");
-            }
-#endif
         }
         remove => _sourceRequested -= value;
     }
@@ -108,12 +102,9 @@ public partial class IconBox : ContentControl
         if (Source is FontIconSource fontIcon)
         {
             fontIcon.FontSize = _lastFontSize;
-            UpdatePaddingForFontIcon();
         }
     }
 
-    private void UpdatePaddingForFontIcon() => Padding = new Thickness(Math.Round(_lastFontSize * -0.2));
-
     private void OnActualThemeChanged(FrameworkElement sender, object args)
     {
         if (_lastTheme == ActualTheme)
@@ -159,7 +150,10 @@ public partial class IconBox : ContentControl
 
     private void Refresh()
     {
-        UpdateSourceKey(this, SourceKey);
+        if (SourceKey is not null)
+        {
+            UpdateSourceKey(this, SourceKey);
+        }
     }
 
     private static void OnSourcePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
@@ -176,10 +170,8 @@ public partial class IconBox : ContentControl
                 self.Padding = default;
                 break;
             case FontIconSource fontIcon:
-                self.UpdateLastFontSize();
                 if (self.Content is IconSourceElement iconSourceElement)
                 {
-                    fontIcon.FontSize = self._lastFontSize;
                     iconSourceElement.IconSource = fontIcon;
                 }
                 else
@@ -198,7 +190,7 @@ public partial class IconBox : ContentControl
                     self.Content = elem;
                 }
 
-                self.UpdatePaddingForFontIcon();
+                self.Padding = new Thickness(Math.Round(self._lastFontSize * -0.2));
 
                 break;
             case BitmapIconSource bitmapIcon:
@@ -214,12 +206,10 @@ public partial class IconBox : ContentControl
                 self.Padding = default;
 
                 break;
-
             case IconSource source:
                 self.Content = source.CreateIconElement();
                 self.Padding = default;
                 break;
-
             default:
                 throw new InvalidOperationException($"New value of {e.NewValue} is not of type IconSource.");
         }
@@ -243,10 +233,10 @@ public partial class IconBox : ContentControl
             return;
         }
 
-        RequestIconFromSource(iconBox, sourceKey);
+        Callback(iconBox, sourceKey);
     }
 
-    private static async void RequestIconFromSource(IconBox iconBox, object? sourceKey)
+    private static async void Callback(IconBox iconBox, object? sourceKey)
     {
         try
         {
@@ -266,12 +256,17 @@ public partial class IconBox : ContentControl
             // list virtualization situation, it's very possible we
             // may have already been set to a new icon before we
             // even got back from the await.
-            if (!ReferenceEquals(sourceKey, iconBox.SourceKey))
+            if (eventArgs.Key != sourceKey)
             {
                 // If the requested icon has changed, then just bail
                 return;
             }
 
+            if (eventArgs.Value == iconBox.Source)
+            {
+                return;
+            }
+
             iconBox.Source = eventArgs.Value;
         }
         catch (Exception ex)

src/modules/cmdpal/Microsoft.CmdPal.UI/Converters/GridItemContainerStyleSelector.cs

@@ -24,19 +24,11 @@ internal sealed partial class GridItemContainerStyleSelector : StyleSelector
 
     protected override Style? SelectStyleCore(object item, DependencyObject container)
     {
-        if (item is not ListItemViewModel element)
+        if (item is ListItemViewModel { IsSectionOrSeparator: true } listItem)
         {
-            return Medium;
-        }
-
-        switch (element.Type)
-        {
-            case ListItemType.Separator:
-                return Separator;
-            case ListItemType.SectionHeader:
-                return Section;
-            default:
-                break;
+            return string.IsNullOrWhiteSpace(listItem.Title)
+                ? Separator!
+                : Section;
         }
 
         return GridProperties switch

src/modules/cmdpal/Microsoft.CmdPal.UI/Converters/GridItemTemplateSelector.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using Microsoft.CmdPal.Core.ViewModels;
-using Microsoft.CommandPalette.Extensions.Toolkit;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
 
@@ -25,19 +24,15 @@ internal sealed partial class GridItemTemplateSelector : DataTemplateSelector
 
     protected override DataTemplate? SelectTemplateCore(object item, DependencyObject dependencyObject)
     {
-        if (item is not ListItemViewModel element)
+        if (item is ListItemViewModel element && element.IsSectionOrSeparator)
         {
-            return Medium;
-        }
+            if (dependencyObject is UIElement li)
+            {
+                li.IsTabStop = false;
+                li.IsHitTestVisible = false;
+            }
 
-        switch (element.Type)
-        {
-            case ListItemType.Separator:
-                return Separator;
-            case ListItemType.SectionHeader:
-                return Section;
-            default:
-                break;
+            return string.IsNullOrWhiteSpace(element.Section) ? Separator : Section;
         }
 
         return GridProperties switch

src/modules/cmdpal/Microsoft.CmdPal.UI/Converters/ListItemContainerStyleSelector.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using Microsoft.CmdPal.Core.ViewModels;
-using Microsoft.CommandPalette.Extensions.Toolkit;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
 
@@ -19,20 +18,11 @@ internal sealed partial class ListItemContainerStyleSelector : StyleSelector
 
     protected override Style? SelectStyleCore(object item, DependencyObject container)
     {
-        if (item is not ListItemViewModel element)
+        return item switch
         {
-            return Default;
-        }
-
-        switch (element.Type)
-        {
-            case ListItemType.Separator:
-                return Separator;
-            case ListItemType.SectionHeader:
-                return Section;
-            case ListItemType.Item:
-            default:
-                return Default;
-        }
+            ListItemViewModel { IsSectionOrSeparator: true } listItemViewModel when string.IsNullOrWhiteSpace(listItemViewModel.Title) => Separator!,
+            ListItemViewModel { IsSectionOrSeparator: true } => Section,
+            _ => Default,
+        };
     }
 }

src/modules/cmdpal/Microsoft.CmdPal.UI/Converters/ListItemTemplateSelector.cs

@@ -18,20 +18,30 @@ public sealed partial class ListItemTemplateSelector : DataTemplateSelector
 
     protected override DataTemplate? SelectTemplateCore(object item, DependencyObject container)
     {
-        if (item is not ListItemViewModel element)
+        DataTemplate? dataTemplate = ListItem;
+
+        if (container is ListViewItem listItem)
         {
-            return ListItem;
+            if (item is ListItemViewModel element)
+            {
+                if (container is ListViewItem li && element.IsSectionOrSeparator)
+                {
+                    li.IsEnabled = false;
+                    li.AllowFocusWhenDisabled = false;
+                    li.AllowFocusOnInteraction = false;
+                    li.IsHitTestVisible = false;
+                    dataTemplate = string.IsNullOrWhiteSpace(element.Section) ? Separator : Section;
+                }
+                else
+                {
+                    listItem.IsEnabled = true;
+                    listItem.AllowFocusWhenDisabled = true;
+                    listItem.AllowFocusOnInteraction = true;
+                    listItem.IsHitTestVisible = true;
+                }
+            }
         }
 
-        switch (element.Type)
-        {
-            case ListItemType.Separator:
-                return Separator;
-            case ListItemType.SectionHeader:
-                return Section;
-            case ListItemType.Item:
-            default:
-                return ListItem;
-        }
+        return dataTemplate;
     }
 }

src/modules/cmdpal/Microsoft.CmdPal.UI/ExtViews/ListPage.xaml

@@ -206,30 +206,23 @@
             x:Key="ListSectionContainerStyle"
             BasedOn="{StaticResource DefaultListViewItemStyle}"
             TargetType="ListViewItem">
-            <Setter Property="IsEnabled" Value="False" />
-            <Setter Property="AllowFocusWhenDisabled" Value="False" />
-            <Setter Property="AllowFocusOnInteraction" Value="False" />
             <Setter Property="IsHitTestVisible" Value="False" />
             <Setter Property="IsTabStop" Value="False" />
             <Setter Property="IsHoldingEnabled" Value="False" />
-            <Setter Property="AllowDrop" Value="False" />
             <Setter Property="Padding" Value="16,8,12,0" />
             <Setter Property="HorizontalContentAlignment" Value="Stretch" />
             <Setter Property="VerticalContentAlignment" Value="Bottom" />
             <Setter Property="MinHeight" Value="{StaticResource ListViewSectionMinHeight}" />
+            <Setter Property="AllowDrop" Value="False" />
         </Style>
 
         <Style
             x:Key="ListSeparatorContainerStyle"
             BasedOn="{StaticResource DefaultListViewItemStyle}"
             TargetType="ListViewItem">
-            <Setter Property="IsEnabled" Value="False" />
-            <Setter Property="AllowFocusWhenDisabled" Value="False" />
-            <Setter Property="AllowFocusOnInteraction" Value="False" />
             <Setter Property="IsHitTestVisible" Value="False" />
             <Setter Property="IsTabStop" Value="False" />
             <Setter Property="IsHoldingEnabled" Value="False" />
-            <Setter Property="AllowDrop" Value="False" />
             <Setter Property="Padding" Value="16,4,12,4" />
             <Setter Property="HorizontalContentAlignment" Value="Stretch" />
             <Setter Property="VerticalContentAlignment" Value="Center" />

src/modules/cmdpal/Microsoft.CmdPal.UI/ExtViews/ListPage.xaml.cs

@@ -1026,7 +1026,10 @@ public sealed partial class ListPage : Page,
         ItemView.SelectedIndex = newIndex;
     }
 
-    private bool IsSeparator(object? item) => item is ListItemViewModel li && !li.IsInteractive;
+    /// <summary>
+    ///  Code stealed from <see cref="Controls.ContextMenu.IsSeparator(object)"/>
+    /// </summary>
+    private bool IsSeparator(object? item) => item is ListItemViewModel li && li.IsSectionOrSeparator;
 
     private enum InputSource
     {

src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/GlobalErrorHandler.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using ManagedCommon;
-using Microsoft.CmdPal.Core.Common.Services;
 using Microsoft.CmdPal.Core.Common.Services.Reports;
 using Windows.Win32;
 using Windows.Win32.Foundation;
@@ -18,20 +17,19 @@ namespace Microsoft.CmdPal.UI.Helpers;
 /// </summary>
 internal sealed partial class GlobalErrorHandler : IDisposable
 {
-    private ErrorReportBuilder? _errorReportBuilder;
+    private readonly ErrorReportBuilder _errorReportBuilder = new();
     private Options? _options;
     private App? _app;
 
     // GlobalErrorHandler is designed to be self-contained; it can be registered and invoked before a service provider is available.
-    internal void Register(App app, Options options, IApplicationInfoService? appInfoService = null)
+    internal void Register(App app, Options options)
     {
         ArgumentNullException.ThrowIfNull(app);
         ArgumentNullException.ThrowIfNull(options);
 
         _options = options;
-        _app = app;
-        _errorReportBuilder = new ErrorReportBuilder(appInfoService);
 
+        _app = app;
         _app.UnhandledException += App_UnhandledException;
         TaskScheduler.UnobservedTaskException += TaskScheduler_UnobservedTaskException;
         AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
@@ -70,7 +68,7 @@ internal sealed partial class GlobalErrorHandler : IDisposable
 
         if (context == Context.MainThreadException)
         {
-            var report = _errorReportBuilder!.BuildReport(ex, context.ToString(), _options?.RedactPii ?? true);
+            var report = _errorReportBuilder.BuildReport(ex, context.ToString(), _options?.RedactPii ?? true);
 
             StoreReport(report, storeOnDesktop: _options?.StoreReportOnUserDesktop == true);
 

src/modules/cmdpal/Microsoft.CmdPal.UI/Helpers/Icons/IconLoaderService.cs

@@ -219,6 +219,6 @@ internal sealed partial class IconLoaderService : IIconLoaderService
             iconSize = DefaultIconSize;
         }
 
-        return IconPathConverter.IconSourceMUX(iconString, fontFamily, iconSize);
+        return IconPathConverter.IconSourceMUX(iconString, false, fontFamily, iconSize);
     }
 }

src/modules/cmdpal/Microsoft.CmdPal.UI/MainWindow.xaml

@@ -22,7 +22,7 @@
             VerticalAlignment="Stretch"
             BlurAmount="{x:Bind ViewModel.BackgroundImageBlurAmount, Mode=OneWay}"
             ImageBrightness="{x:Bind ViewModel.BackgroundImageBrightness, Mode=OneWay}"
-            ImageOpacity="{x:Bind ViewModel.EffectiveImageOpacity, Mode=OneWay}"
+            ImageOpacity="{x:Bind ViewModel.BackgroundImageOpacity, Mode=OneWay}"
             ImageSource="{x:Bind ViewModel.BackgroundImageSource, Mode=OneWay}"
             ImageStretch="{x:Bind ViewModel.BackgroundImageStretch, Mode=OneWay}"
             IsHitTestVisible="False"
@@ -31,6 +31,6 @@
             TintIntensity="{x:Bind ViewModel.BackgroundImageTintIntensity, Mode=OneWay}"
             Visibility="{x:Bind ViewModel.ShowBackgroundImage, Mode=OneWay}" />
 
-        <pages:ShellPage HostWindow="{x:Bind}" />
+        <pages:ShellPage />
     </Grid>
 </winuiex:WindowEx>

src/modules/cmdpal/Microsoft.CmdPal.UI/MainWindow.xaml.cs

@@ -31,7 +31,6 @@ using Windows.ApplicationModel.Activation;
 using Windows.Foundation;
 using Windows.Graphics;
 using Windows.System;
-using Windows.UI;
 using Windows.Win32;
 using Windows.Win32.Foundation;
 using Windows.Win32.Graphics.Dwm;
@@ -54,9 +53,7 @@ public sealed partial class MainWindow : WindowEx,
     IRecipient<ErrorOccurredMessage>,
     IRecipient<DragStartedMessage>,
     IRecipient<DragCompletedMessage>,
-    IRecipient<ToggleDevRibbonMessage>,
-    IDisposable,
-    IHostWindow
+    IDisposable
 {
     [System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.NamingRules", "SA1310:Field names should not contain underscore", Justification = "Stylistically, window messages are WM_")]
     [System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.NamingRules", "SA1306:Field names should begin with lower-case letter", Justification = "Stylistically, window messages are WM_")]
@@ -83,21 +80,15 @@ public sealed partial class MainWindow : WindowEx,
     private int _sessionErrorCount;
 
     private DesktopAcrylicController? _acrylicController;
-    private MicaController? _micaController;
     private SystemBackdropConfiguration? _configurationSource;
-    private bool _isUpdatingBackdrop;
     private TimeSpan _autoGoHomeInterval = Timeout.InfiniteTimeSpan;
 
     private WindowPosition _currentWindowPosition = new();
 
     private bool _preventHideWhenDeactivated;
 
-    private DevRibbon? _devRibbon;
-
     private MainWindowViewModel ViewModel { get; }
 
-    public bool IsVisibleToUser { get; private set; } = true;
-
     public MainWindow()
     {
         InitializeComponent();
@@ -118,7 +109,7 @@ public sealed partial class MainWindow : WindowEx,
             CommandPaletteHost.SetHostHwnd((ulong)_hwnd.Value);
         }
 
-        InitializeBackdropSupport();
+        SetAcrylic();
 
         _hiddenOwnerBehavior.ShowInTaskbar(this, Debugger.IsAttached);
 
@@ -142,7 +133,6 @@ public sealed partial class MainWindow : WindowEx,
         WeakReferenceMessenger.Default.Register<ErrorOccurredMessage>(this);
         WeakReferenceMessenger.Default.Register<DragStartedMessage>(this);
         WeakReferenceMessenger.Default.Register<DragCompletedMessage>(this);
-        WeakReferenceMessenger.Default.Register<ToggleDevRibbonMessage>(this);
 
         // Hide our titlebar.
         // We need to both ExtendsContentIntoTitleBar, then set the height to Collapsed
@@ -168,7 +158,7 @@ public sealed partial class MainWindow : WindowEx,
         App.Current.Services.GetService<SettingsModel>()!.SettingsChanged += SettingsChangedHandler;
 
         // Make sure that we update the acrylic theme when the OS theme changes
-        RootElement.ActualThemeChanged += (s, e) => DispatcherQueue.TryEnqueue(UpdateBackdrop);
+        RootElement.ActualThemeChanged += (s, e) => DispatcherQueue.TryEnqueue(UpdateAcrylic);
 
         // Hardcoding event name to avoid bringing in the PowerToys.interop dependency. Event name must match CMDPAL_SHOW_EVENT from shared_constants.h
         NativeEventWaiter.WaitForEventLoop("Local\\PowerToysCmdPal-ShowEvent-62336fcd-8611-4023-9b30-091a6af4cc5a", () =>
@@ -195,7 +185,7 @@ public sealed partial class MainWindow : WindowEx,
 
     private void ThemeServiceOnThemeChanged(object? sender, ThemeChangedEventArgs e)
     {
-        UpdateBackdrop();
+        UpdateAcrylic();
     }
 
     private static void LocalKeyboardListener_OnKeyPressed(object? sender, LocalKeyboardListenerKeyPressedEventArgs e)
@@ -216,8 +206,7 @@ public sealed partial class MainWindow : WindowEx,
         // Add dev ribbon if enabled
         if (!BuildInfo.IsCiBuild)
         {
-            _devRibbon = new DevRibbon { Margin = new Thickness(-1, -1, 120, -1) };
-            RootElement.Children.Add(_devRibbon);
+            RootElement.Children.Add(new DevRibbon { Margin = new Thickness(-1, -1, 120, -1) });
         }
     }
 
@@ -291,170 +280,48 @@ public sealed partial class MainWindow : WindowEx,
         _autoGoHomeTimer.Interval = _autoGoHomeInterval;
     }
 
-    private void InitializeBackdropSupport()
+    private void SetAcrylic()
     {
-        if (DesktopAcrylicController.IsSupported() || MicaController.IsSupported())
+        if (DesktopAcrylicController.IsSupported())
         {
+            // Hooking up the policy object.
             _configurationSource = new SystemBackdropConfiguration
             {
+                // Initial configuration state.
                 IsInputActive = true,
             };
+            UpdateAcrylic();
         }
     }
 
-    private void UpdateBackdrop()
+    private void UpdateAcrylic()
     {
-        // Prevent re-entrance when backdrop changes trigger ActualThemeChanged
-        if (_isUpdatingBackdrop)
-        {
-            return;
-        }
-
-        _isUpdatingBackdrop = true;
-
-        var backdrop = _themeService.Current.BackdropParameters;
-        var isImageMode = ViewModel.ShowBackgroundImage;
-        var config = BackdropStyles.Get(backdrop.Style);
-
         try
         {
-            switch (config.ControllerKind)
+            if (_acrylicController != null)
             {
-                case BackdropControllerKind.Solid:
-                    CleanupBackdropControllers();
-                    var tintColor = Color.FromArgb(
-                        (byte)(backdrop.EffectiveOpacity * 255),
-                        backdrop.TintColor.R,
-                        backdrop.TintColor.G,
-                        backdrop.TintColor.B);
-                    SetupTransparentBackdrop(tintColor);
-                    break;
-
-                case BackdropControllerKind.Mica:
-                case BackdropControllerKind.MicaAlt:
-                    SetupMica(backdrop, isImageMode, config.ControllerKind);
-                    break;
-
-                case BackdropControllerKind.Acrylic:
-                case BackdropControllerKind.AcrylicThin:
-                default:
-                    SetupDesktopAcrylic(backdrop, isImageMode, config.ControllerKind);
-                    break;
+                _acrylicController.RemoveAllSystemBackdropTargets();
+                _acrylicController.Dispose();
             }
+
+            var backdrop = _themeService.Current.BackdropParameters;
+            _acrylicController = new DesktopAcrylicController
+            {
+                TintColor = backdrop.TintColor,
+                TintOpacity = backdrop.TintOpacity,
+                FallbackColor = backdrop.FallbackColor,
+                LuminosityOpacity = backdrop.LuminosityOpacity,
+            };
+
+            // Enable the system backdrop.
+            // Note: Be sure to have "using WinRT;" to support the Window.As<...>() call.
+            _acrylicController.AddSystemBackdropTarget(this.As<ICompositionSupportsSystemBackdrop>());
+            _acrylicController.SetSystemBackdropConfiguration(_configurationSource);
         }
         catch (Exception ex)
         {
             Logger.LogError("Failed to update backdrop", ex);
         }
-        finally
-        {
-            _isUpdatingBackdrop = false;
-        }
-    }
-
-    private void SetupTransparentBackdrop(Color tintColor)
-    {
-        if (SystemBackdrop is TransparentTintBackdrop existingBackdrop)
-        {
-            existingBackdrop.TintColor = tintColor;
-        }
-        else
-        {
-            SystemBackdrop = new TransparentTintBackdrop { TintColor = tintColor };
-        }
-    }
-
-    private void CleanupBackdropControllers()
-    {
-        if (_acrylicController is not null)
-        {
-            _acrylicController.RemoveAllSystemBackdropTargets();
-            _acrylicController.Dispose();
-            _acrylicController = null;
-        }
-
-        if (_micaController is not null)
-        {
-            _micaController.RemoveAllSystemBackdropTargets();
-            _micaController.Dispose();
-            _micaController = null;
-        }
-    }
-
-    private void SetupDesktopAcrylic(BackdropParameters backdrop, bool isImageMode, BackdropControllerKind kind)
-    {
-        CleanupBackdropControllers();
-
-        // Fall back to solid color if acrylic not supported
-        if (_configurationSource is null || !DesktopAcrylicController.IsSupported())
-        {
-            SetupTransparentBackdrop(backdrop.FallbackColor);
-            return;
-        }
-
-        // DesktopAcrylicController and SystemBackdrop can't be active simultaneously
-        SystemBackdrop = null;
-
-        // Image mode: no tint here, BlurImageControl handles it (avoids double-tinting)
-        var effectiveTintOpacity = isImageMode
-            ? 0.0f
-            : backdrop.EffectiveOpacity;
-
-        _acrylicController = new DesktopAcrylicController
-        {
-            Kind = kind == BackdropControllerKind.AcrylicThin
-                ? DesktopAcrylicKind.Thin
-                : DesktopAcrylicKind.Default,
-            TintColor = backdrop.TintColor,
-            TintOpacity = effectiveTintOpacity,
-            FallbackColor = backdrop.FallbackColor,
-            LuminosityOpacity = backdrop.EffectiveLuminosityOpacity,
-        };
-
-        // Requires "using WinRT;" for Window.As<>()
-        _acrylicController.AddSystemBackdropTarget(this.As<ICompositionSupportsSystemBackdrop>());
-        _acrylicController.SetSystemBackdropConfiguration(_configurationSource);
-    }
-
-    private void SetupMica(BackdropParameters backdrop, bool isImageMode, BackdropControllerKind kind)
-    {
-        CleanupBackdropControllers();
-
-        // Fall back to solid color if Mica not supported
-        if (_configurationSource is null || !MicaController.IsSupported())
-        {
-            SetupTransparentBackdrop(backdrop.FallbackColor);
-            return;
-        }
-
-        // MicaController and SystemBackdrop can't be active simultaneously
-        SystemBackdrop = null;
-        _configurationSource.Theme = _themeService.Current.Theme == ElementTheme.Dark
-            ? SystemBackdropTheme.Dark
-            : SystemBackdropTheme.Light;
-
-        var hasColorization = _themeService.Current.HasColorization || isImageMode;
-
-        _micaController = new MicaController
-        {
-            Kind = kind == BackdropControllerKind.MicaAlt
-                ? MicaKind.BaseAlt
-                : MicaKind.Base,
-        };
-
-        // Only set tint properties when colorization is active
-        // Otherwise let system handle light/dark theme defaults automatically
-        if (hasColorization)
-        {
-            // Image mode: no tint here, BlurImageControl handles it (avoids double-tinting)
-            _micaController.TintColor = backdrop.TintColor;
-            _micaController.TintOpacity = isImageMode ? 0.0f : backdrop.EffectiveOpacity;
-            _micaController.FallbackColor = backdrop.FallbackColor;
-            _micaController.LuminosityOpacity = backdrop.EffectiveLuminosityOpacity;
-        }
-
-        _micaController.AddSystemBackdropTarget(this.As<ICompositionSupportsSystemBackdrop>());
-        _micaController.SetSystemBackdropConfiguration(_configurationSource);
     }
 
     private void ShowHwnd(IntPtr hwndValue, MonitorBehavior target)
@@ -708,14 +575,17 @@ public sealed partial class MainWindow : WindowEx,
             {
                 Logger.LogWarning($"DWM cloaking of the main window failed. HRESULT: {hr.Value}.");
             }
-            else
-            {
-                IsVisibleToUser = false;
-            }
 
             wasCloaked = hr.Succeeded;
         }
 
+        if (wasCloaked)
+        {
+            // Because we're only cloaking the window, bury it at the bottom in case something can
+            // see it - e.g. some accessibility helper (note: this also removes the top-most status).
+            PInvoke.SetWindowPos(_hwnd, HWND.HWND_BOTTOM, 0, 0, 0, 0, SET_WINDOW_POS_FLAGS.SWP_NOMOVE | SET_WINDOW_POS_FLAGS.SWP_NOSIZE);
+        }
+
         return wasCloaked;
     }
 
@@ -725,7 +595,6 @@ public sealed partial class MainWindow : WindowEx,
         {
             BOOL value = false;
             PInvoke.DwmSetWindowAttribute(_hwnd, DWMWINDOWATTRIBUTE.DWMWA_CLOAK, &value, (uint)sizeof(BOOL));
-            IsVisibleToUser = true;
         }
     }
 
@@ -768,8 +637,12 @@ public sealed partial class MainWindow : WindowEx,
 
     private void DisposeAcrylic()
     {
-        CleanupBackdropControllers();
-        _configurationSource = null!;
+        if (_acrylicController is not null)
+        {
+            _acrylicController.Dispose();
+            _acrylicController = null!;
+            _configurationSource = null!;
+        }
     }
 
     // Updates our window s.t. the top of the window is draggable.
@@ -1139,11 +1012,6 @@ public sealed partial class MainWindow : WindowEx,
         DisposeAcrylic();
     }
 
-    public void Receive(ToggleDevRibbonMessage message)
-    {
-        _devRibbon?.Visibility = _devRibbon.Visibility == Visibility.Visible ? Visibility.Collapsed : Visibility.Visible;
-    }
-
     public void Receive(DragStartedMessage message)
     {
         _preventHideWhenDeactivated = true;

src/modules/cmdpal/Microsoft.CmdPal.UI/Messages/ToggleDevRibbonMessage.cs

@@ -1,7 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.UI.Messages;
-
-public record ToggleDevRibbonMessage;

src/modules/cmdpal/Microsoft.CmdPal.UI/Microsoft.CmdPal.UI.csproj

@@ -141,7 +141,6 @@
     <ProjectReference Include="..\ext\Microsoft.CmdPal.Ext.Apps\Microsoft.CmdPal.Ext.Apps.csproj" />
     <ProjectReference Include="..\ext\Microsoft.CmdPal.Ext.Bookmark\Microsoft.CmdPal.Ext.Bookmarks.csproj" />
     <ProjectReference Include="..\ext\Microsoft.CmdPal.Ext.Calc\Microsoft.CmdPal.Ext.Calc.csproj" />
-    <ProjectReference Include="..\ext\Microsoft.CmdPal.Ext.PerformanceMonitor\Microsoft.CmdPal.Ext.PerformanceMonitor.csproj" />
     <ProjectReference Include="..\ext\Microsoft.CmdPal.Ext.Registry\Microsoft.CmdPal.Ext.Registry.csproj" />
     <ProjectReference Include="..\ext\Microsoft.CmdPal.Ext.Shell\Microsoft.CmdPal.Ext.Shell.csproj" />
     <ProjectReference Include="..\ext\Microsoft.CmdPal.Ext.TimeDate\Microsoft.CmdPal.Ext.TimeDate.csproj" />

src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/ShellPage.xaml.cs

@@ -13,7 +13,6 @@ using Microsoft.CmdPal.Core.ViewModels.Messages;
 using Microsoft.CmdPal.UI.Events;
 using Microsoft.CmdPal.UI.Helpers;
 using Microsoft.CmdPal.UI.Messages;
-using Microsoft.CmdPal.UI.Services;
 using Microsoft.CmdPal.UI.Settings;
 using Microsoft.CmdPal.UI.ViewModels;
 using Microsoft.CommandPalette.Extensions;
@@ -73,8 +72,6 @@ public sealed partial class ShellPage : Microsoft.UI.Xaml.Controls.Page,
 
     public event PropertyChangedEventHandler? PropertyChanged;
 
-    public IHostWindow? HostWindow { get; set; }
-
     public ShellPage()
     {
         this.InitializeComponent();
@@ -438,7 +435,7 @@ public sealed partial class ShellPage : Microsoft.UI.Xaml.Controls.Page,
 
         if (!RootFrame.CanGoBack)
         {
-            ViewModel.GoHome(withAnimation, focusSearch);
+            ViewModel.GoHome();
         }
 
         if (focusSearch)
@@ -534,11 +531,6 @@ public sealed partial class ShellPage : Microsoft.UI.Xaml.Controls.Page,
 
         if (shouldSearchBoxBeVisible || page is not ContentPage)
         {
-            if (HostWindow?.IsVisibleToUser != true)
-            {
-                return;
-            }
-
             ViewModel.IsSearchBoxVisible = shouldSearchBoxBeVisible;
             SearchBox.Focus(FocusState.Programmatic);
             SearchBox.SelectSearch();
@@ -555,11 +547,6 @@ public sealed partial class ShellPage : Microsoft.UI.Xaml.Controls.Page,
 
                     try
                     {
-                        if (HostWindow?.IsVisibleToUser != true)
-                        {
-                            return;
-                        }
-
                         await page.DispatcherQueue.EnqueueAsync(
                             async () =>
                             {
@@ -569,11 +556,6 @@ public sealed partial class ShellPage : Microsoft.UI.Xaml.Controls.Page,
                                 {
                                     token.ThrowIfCancellationRequested();
 
-                                    if (HostWindow?.IsVisibleToUser != true)
-                                    {
-                                        break;
-                                    }
-
                                     if (FocusManager.FindFirstFocusableElement(page) is FrameworkElement frameworkElement)
                                     {
                                         var set = frameworkElement.Focus(FocusState.Programmatic);

src/modules/cmdpal/Microsoft.CmdPal.UI/PowerToysRootPageService.cs

@@ -6,7 +6,6 @@ using System.Runtime.InteropServices;
 using System.Runtime.Versioning;
 using ManagedCommon;
 using Microsoft.CmdPal.Core.Common.Services;
-using Microsoft.CmdPal.Core.Common.Text;
 using Microsoft.CmdPal.Core.ViewModels;
 using Microsoft.CmdPal.UI.ViewModels;
 using Microsoft.CmdPal.UI.ViewModels.MainPage;
@@ -24,13 +23,13 @@ internal sealed class PowerToysRootPageService : IRootPageService
     private IExtensionWrapper? _activeExtension;
     private Lazy<MainListPage> _mainListPage;
 
-    public PowerToysRootPageService(TopLevelCommandManager topLevelCommandManager, SettingsModel settings, AliasManager aliasManager, AppStateModel appStateModel, IFuzzyMatcherProvider fuzzyMatcherProvider)
+    public PowerToysRootPageService(TopLevelCommandManager topLevelCommandManager, SettingsModel settings, AliasManager aliasManager, AppStateModel appStateModel)
     {
         _tlcManager = topLevelCommandManager;
 
         _mainListPage = new Lazy<MainListPage>(() =>
         {
-            return new MainListPage(_tlcManager, settings, aliasManager, appStateModel, fuzzyMatcherProvider);
+            return new MainListPage(_tlcManager, settings, aliasManager, appStateModel);
         });
     }
 

src/modules/cmdpal/Microsoft.CmdPal.UI/Program.cs

@@ -4,7 +4,6 @@
 
 using System.Runtime.InteropServices;
 using ManagedCommon;
-using Microsoft.CmdPal.Core.Common.Services;
 using Microsoft.CmdPal.UI.Events;
 using Microsoft.PowerToys.Telemetry;
 using Microsoft.UI.Dispatching;
@@ -66,25 +65,6 @@ internal sealed class Program
         }
 
         Logger.LogDebug($"Starting at {DateTime.UtcNow}");
-
-        // Log application startup information
-        try
-        {
-            var appInfoService = new ApplicationInfoService(() => Logger.CurrentVersionLogDirectoryPath);
-            var startupMessage = $"""
-                ============================================================
-                Hello World! Command Palette is starting.
-
-                {appInfoService.GetApplicationInfoSummary()}
-                ============================================================
-                """;
-            Logger.LogInfo(startupMessage);
-        }
-        catch (Exception ex)
-        {
-            Logger.LogError("Failed to log application startup information", ex);
-        }
-
         PowerToysTelemetry.Log.WriteEvent(new CmdPalProcessStarted());
 
         WinRT.ComWrappersSupport.InitializeComWrappers();

src/modules/cmdpal/Microsoft.CmdPal.UI/Services/ColorfulThemeProvider.cs

@@ -4,7 +4,6 @@
 
 using CommunityToolkit.WinUI.Helpers;
 using Microsoft.CmdPal.UI.Helpers;
-using Microsoft.CmdPal.UI.ViewModels;
 using Microsoft.CmdPal.UI.ViewModels.Services;
 using Microsoft.UI.Xaml;
 using Windows.UI;
@@ -35,7 +34,7 @@ internal sealed class ColorfulThemeProvider : IThemeProvider
         _uiSettings = uiSettings;
     }
 
-    public BackdropParameters GetBackdropParameters(ThemeContext context)
+    public AcrylicBackdropParameters GetAcrylicBackdrop(ThemeContext context)
     {
         var isLight = context.Theme == ElementTheme.Light ||
                       (context.Theme == ElementTheme.Default &&
@@ -54,26 +53,7 @@ internal sealed class ColorfulThemeProvider : IThemeProvider
         var colorIntensity = isLight ? 0.6f * colorIntensityUser : colorIntensityUser;
         var effectiveBgColor = ColorBlender.Blend(baseColor, blended, colorIntensity);
 
-        var transparencyMode = context.BackdropStyle ?? BackdropStyle.Acrylic;
-        var config = BackdropStyles.Get(transparencyMode);
-
-        // For colorful theme, boost tint opacity to show color better through blur
-        // But not for styles with fixed opacity (Mica) - they handle their own opacity
-        var baseTintOpacity = config.ControllerKind == BackdropControllerKind.Solid || !config.SupportsOpacity
-            ? (float?)null // Use default
-            : Math.Max(config.BaseTintOpacity, 0.8f);
-
-        var effectiveOpacity = config.ComputeEffectiveOpacity(context.BackdropOpacity, baseTintOpacity);
-        var effectiveLuminosityOpacity = config.SupportsOpacity
-            ? config.BaseLuminosityOpacity * context.BackdropOpacity
-            : config.BaseLuminosityOpacity;
-
-        return new BackdropParameters(
-            TintColor: effectiveBgColor,
-            FallbackColor: effectiveBgColor,
-            EffectiveOpacity: effectiveOpacity,
-            EffectiveLuminosityOpacity: effectiveLuminosityOpacity,
-            Style: transparencyMode);
+        return new AcrylicBackdropParameters(effectiveBgColor, effectiveBgColor, 0.8f, 0.8f);
     }
 
     private static class ColorBlender

src/modules/cmdpal/Microsoft.CmdPal.UI/Services/IHostWindow.cs

@@ -1,16 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace Microsoft.CmdPal.UI.Services;
-
-/// <summary>
-/// Represents abstract host window functionality.
-/// </summary>
-public interface IHostWindow
-{
-    /// <summary>
-    /// Gets a value indicating whether the window is visible to the user, taking account not only window visibility but also cloaking.
-    /// </summary>
-    bool IsVisibleToUser { get; }
-}

src/modules/cmdpal/Microsoft.CmdPal.UI/Services/IThemeProvider.cs

@@ -8,14 +8,14 @@ using Microsoft.CmdPal.UI.ViewModels.Services;
 namespace Microsoft.CmdPal.UI.Services;
 
 /// <summary>
-/// Provides theme identification, resource path resolution, and creation of backdrop
-/// parameters based on the current <see cref="ThemeContext"/>.
+/// Provides theme identification, resource path resolution, and creation of acrylic
+/// backdrop parameters based on the current <see cref="ThemeContext"/>.
 /// </summary>
 /// <remarks>
 /// Implementations should expose a stable <see cref="ThemeKey"/> and a valid XAML resource
 /// dictionary path via <see cref="ResourcePath"/>. The
-/// <see cref="GetBackdropParameters(ThemeContext)"/> method computes
-/// <see cref="BackdropParameters"/> using the supplied theme context.
+/// <see cref="GetAcrylicBackdrop(ThemeContext)"/> method computes
+/// <see cref="AcrylicBackdropParameters"/> using the supplied theme context.
 /// </remarks>
 internal interface IThemeProvider
 {
@@ -30,9 +30,9 @@ internal interface IThemeProvider
     string ResourcePath { get; }
 
     /// <summary>
-    /// Creates backdrop parameters based on the provided theme context.
+    /// Creates acrylic backdrop parameters based on the provided theme context.
     /// </summary>
-    /// <param name="context">The current theme context, including theme, tint, transparency mode, and optional background details.</param>
-    /// <returns>The computed <see cref="BackdropParameters"/> for the backdrop.</returns>
-    BackdropParameters GetBackdropParameters(ThemeContext context);
+    /// <param name="context">The current theme context, including theme, tint, and optional background details.</param>
+    /// <returns>The computed <see cref="AcrylicBackdropParameters"/> for the backdrop.</returns>
+    AcrylicBackdropParameters GetAcrylicBackdrop(ThemeContext context);
 }

src/modules/cmdpal/Microsoft.CmdPal.UI/Services/NormalThemeProvider.cs

@@ -2,7 +2,6 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using Microsoft.CmdPal.UI.ViewModels;
 using Microsoft.CmdPal.UI.ViewModels.Services;
 using Microsoft.UI.Xaml;
 using Windows.UI;
@@ -29,28 +28,16 @@ internal sealed class NormalThemeProvider : IThemeProvider
 
     public string ResourcePath => "ms-appx:///Styles/Theme.Normal.xaml";
 
-    public BackdropParameters GetBackdropParameters(ThemeContext context)
+    public AcrylicBackdropParameters GetAcrylicBackdrop(ThemeContext context)
     {
         var isLight = context.Theme == ElementTheme.Light ||
                       (context.Theme == ElementTheme.Default &&
                        _uiSettings.GetColorValue(UIColorType.Background).R > 128);
 
-        var backdropStyle = context.BackdropStyle ?? BackdropStyle.Acrylic;
-        var config = BackdropStyles.Get(backdropStyle);
-
-        // Apply light/dark theme adjustment to luminosity
-        var baseLuminosityOpacity = isLight
-            ? config.BaseLuminosityOpacity
-            : Math.Min(config.BaseLuminosityOpacity + 0.06f, 1.0f);
-
-        var effectiveOpacity = config.ComputeEffectiveOpacity(context.BackdropOpacity);
-        var effectiveLuminosityOpacity = baseLuminosityOpacity * context.BackdropOpacity;
-
-        return new BackdropParameters(
+        return new AcrylicBackdropParameters(
             TintColor: isLight ? LightBaseColor : DarkBaseColor,
             FallbackColor: isLight ? LightBaseColor : DarkBaseColor,
-            EffectiveOpacity: effectiveOpacity,
-            EffectiveLuminosityOpacity: effectiveLuminosityOpacity,
-            Style: backdropStyle);
+            TintOpacity: 0.5f,
+            LuminosityOpacity: isLight ? 0.9f : 0.96f);
     }
 }

src/modules/cmdpal/Microsoft.CmdPal.UI/Services/ThemeContext.cs

@@ -2,16 +2,12 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using Microsoft.CmdPal.UI.ViewModels;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Media;
 using Windows.UI;
 
 namespace Microsoft.CmdPal.UI.Services;
 
-/// <summary>
-/// Input parameters for theme computation, passed to theme providers.
-/// </summary>
 internal sealed record ThemeContext
 {
     public ElementTheme Theme { get; init; }
@@ -25,8 +21,4 @@ internal sealed record ThemeContext
     public double BackgroundImageOpacity { get; init; }
 
     public int? ColorIntensity { get; init; }
-
-    public BackdropStyle? BackdropStyle { get; init; }
-
-    public float BackdropOpacity { get; init; } = 1.0f;
 }

src/modules/cmdpal/Microsoft.CmdPal.UI/Services/ThemeService.cs

@@ -72,13 +72,10 @@ internal sealed partial class ThemeService : IThemeService, IDisposable
         }
 
         // provider selection
-        var themeColorIntensity = Math.Clamp(_settings.CustomThemeColorIntensity, 0, 100);
-        var imageTintIntensity = Math.Clamp(_settings.BackgroundImageTintIntensity, 0, 100);
-        var effectiveColorIntensity = _settings.ColorizationMode == ColorizationMode.Image
-            ? imageTintIntensity
-            : themeColorIntensity;
-
-        IThemeProvider provider = UseColorfulProvider(effectiveColorIntensity) ? _colorfulThemeProvider : _normalThemeProvider;
+        var intensity = Math.Clamp(_settings.CustomThemeColorIntensity, 0, 100);
+        IThemeProvider provider = intensity > 0 && _settings.ColorizationMode is ColorizationMode.CustomColor or ColorizationMode.WindowsAccentColor or ColorizationMode.Image
+                ? _colorfulThemeProvider
+                : _normalThemeProvider;
 
         // Calculate values
         var tint = _settings.ColorizationMode switch
@@ -99,39 +96,32 @@ internal sealed partial class ThemeService : IThemeService, IDisposable
         };
         var opacity = Math.Clamp(_settings.BackgroundImageOpacity, 0, 100) / 100.0;
 
-        // create input and offload to actual theme provider
+        // create context and offload to actual theme provider
         var context = new ThemeContext
         {
             Tint = tint,
-            ColorIntensity = effectiveColorIntensity,
+            ColorIntensity = intensity,
             Theme = effectiveTheme,
             BackgroundImageSource = imageSource,
             BackgroundImageStretch = stretch,
             BackgroundImageOpacity = opacity,
-            BackdropStyle = _settings.BackdropStyle,
-            BackdropOpacity = Math.Clamp(_settings.BackdropOpacity, 0, 100) / 100f,
         };
-        var backdrop = provider.GetBackdropParameters(context);
+        var backdrop = provider.GetAcrylicBackdrop(context);
         var blur = _settings.BackgroundImageBlurAmount;
         var brightness = _settings.BackgroundImageBrightness;
 
         // Create public snapshot (no provider!)
-        var hasColorization = effectiveColorIntensity > 0
-            && _settings.ColorizationMode is ColorizationMode.CustomColor or ColorizationMode.WindowsAccentColor or ColorizationMode.Image;
-
         var snapshot = new ThemeSnapshot
         {
             Tint = tint,
-            TintIntensity = effectiveColorIntensity / 100f,
+            TintIntensity = intensity / 100f,
             Theme = effectiveTheme,
             BackgroundImageSource = imageSource,
             BackgroundImageStretch = stretch,
             BackgroundImageOpacity = opacity,
             BackdropParameters = backdrop,
-            BackdropOpacity = context.BackdropOpacity,
             BlurAmount = blur,
             BackgroundBrightness = brightness / 100f,
-            HasColorization = hasColorization,
         };
 
         // Bundle with provider for internal use
@@ -148,12 +138,6 @@ internal sealed partial class ThemeService : IThemeService, IDisposable
         ThemeChanged?.Invoke(this, new ThemeChangedEventArgs());
     }
 
-    private bool UseColorfulProvider(int effectiveColorIntensity)
-    {
-        return _settings.ColorizationMode == ColorizationMode.Image
-               || (effectiveColorIntensity > 0 && _settings.ColorizationMode is ColorizationMode.CustomColor or ColorizationMode.WindowsAccentColor);
-    }
-
     private static BitmapImage? LoadImageSafe(string? path)
     {
         if (string.IsNullOrWhiteSpace(path))
@@ -211,15 +195,13 @@ internal sealed partial class ThemeService : IThemeService, IDisposable
             {
                 Tint = Colors.Transparent,
                 Theme = ElementTheme.Light,
-                BackdropParameters = new BackdropParameters(Colors.Black, Colors.Black, EffectiveOpacity: 0.5f, EffectiveLuminosityOpacity: 0.5f),
-                BackdropOpacity = 1.0f,
+                BackdropParameters = new AcrylicBackdropParameters(Colors.Black, Colors.Black, 0.5f, 0.5f),
                 BackgroundImageOpacity = 1,
                 BackgroundImageSource = null,
                 BackgroundImageStretch = Stretch.Fill,
                 BlurAmount = 0,
                 TintIntensity = 1.0f,
                 BackgroundBrightness = 0,
-                HasColorization = false,
             },
             Provider = _normalThemeProvider,
         };

src/modules/cmdpal/Microsoft.CmdPal.UI/Settings/AppearancePage.xaml

@@ -22,50 +22,18 @@
                     HorizontalAlignment="Stretch"
                     Spacing="{StaticResource SettingsCardSpacing}">
 
-                    <StackPanel
-                        Margin="0,0,0,16"
-                        HorizontalAlignment="Left"
-                        Orientation="Horizontal"
-                        Spacing="16">
-                        <ptControls:ScreenPreview>
-                            <ptControls:CommandPalettePreview
-                                PreviewBackdropStyle="{x:Bind ViewModel.Appearance.EffectiveBackdropStyle, Mode=OneWay}"
-                                PreviewBackgroundColor="{x:Bind ViewModel.Appearance.EffectiveBackdrop.TintColor, Mode=OneWay}"
-                                PreviewBackgroundImageBlurAmount="{x:Bind ViewModel.Appearance.EffectiveBackgroundImageBlurAmount, Mode=OneWay}"
-                                PreviewBackgroundImageBrightness="{x:Bind ViewModel.Appearance.EffectiveBackgroundImageBrightness, Mode=OneWay}"
-                                PreviewBackgroundImageFit="{x:Bind ViewModel.Appearance.BackgroundImageFit, Mode=OneWay}"
-                                PreviewBackgroundImageOpacity="{x:Bind ViewModel.Appearance.EffectiveImageOpacity, Mode=OneWay}"
-                                PreviewBackgroundImageSource="{x:Bind ViewModel.Appearance.EffectiveBackgroundImageSource, Mode=OneWay}"
-                                PreviewBackgroundImageTint="{x:Bind ViewModel.Appearance.EffectiveThemeColor, Mode=OneWay}"
-                                PreviewBackgroundImageTintIntensity="{x:Bind ViewModel.Appearance.EffectiveTintIntensity, Mode=OneWay}"
-                                PreviewEffectiveOpacity="{x:Bind ViewModel.Appearance.EffectiveBackdrop.EffectiveOpacity, Mode=OneWay}"
-                                RequestedTheme="{x:Bind ViewModel.Appearance.EffectiveTheme, Mode=OneWay}" />
-                        </ptControls:ScreenPreview>
-                        <StackPanel VerticalAlignment="Bottom" Spacing="8">
-                            <Button
-                                x:Uid="Settings_AppearancePage_OpenCommandPaletteButton"
-                                MinWidth="200"
-                                HorizontalContentAlignment="Left"
-                                Click="OpenCommandPalette_Click"
-                                Style="{StaticResource SubtleButtonStyle}">
-                                <StackPanel Orientation="Horizontal" Spacing="8">
-                                    <FontIcon FontSize="16" Glyph="&#xE8A7;" />
-                                    <TextBlock x:Uid="Settings_AppearancePage_OpenCommandPaletteButton_Text" />
-                                </StackPanel>
-                            </Button>
-                            <Button
-                                x:Uid="Settings_AppearancePage_ResetAppearanceButton"
-                                MinWidth="200"
-                                HorizontalContentAlignment="Left"
-                                Command="{x:Bind ViewModel.Appearance.ResetAppearanceSettingsCommand}"
-                                Style="{StaticResource SubtleButtonStyle}">
-                                <StackPanel Orientation="Horizontal" Spacing="8">
-                                    <FontIcon FontSize="16" Glyph="&#xE72C;" />
-                                    <TextBlock x:Uid="Settings_AppearancePage_ResetAppearanceButton_Text" />
-                                </StackPanel>
-                            </Button>
-                        </StackPanel>
-                    </StackPanel>
+                    <ptControls:ScreenPreview Margin="0,0,0,16" HorizontalAlignment="Left">
+                        <ptControls:CommandPalettePreview
+                            PreviewBackgroundColor="{x:Bind ViewModel.Appearance.EffectiveBackdrop.TintColor, Mode=OneWay}"
+                            PreviewBackgroundImageBlurAmount="{x:Bind ViewModel.Appearance.EffectiveBackgroundImageBlurAmount, Mode=OneWay}"
+                            PreviewBackgroundImageBrightness="{x:Bind ViewModel.Appearance.EffectiveBackgroundImageBrightness, Mode=OneWay}"
+                            PreviewBackgroundImageFit="{x:Bind ViewModel.Appearance.BackgroundImageFit, Mode=OneWay}"
+                            PreviewBackgroundImageSource="{x:Bind ViewModel.Appearance.EffectiveBackgroundImageSource, Mode=OneWay}"
+                            PreviewBackgroundImageTint="{x:Bind ViewModel.Appearance.EffectiveThemeColor, Mode=OneWay}"
+                            PreviewBackgroundImageTintIntensity="{x:Bind ViewModel.Appearance.ColorIntensity, Mode=OneWay}"
+                            PreviewBackgroundOpacity="{x:Bind ViewModel.Appearance.EffectiveBackdrop.TintOpacity, Mode=OneWay}"
+                            RequestedTheme="{x:Bind ViewModel.Appearance.EffectiveTheme, Mode=OneWay}" />
+                    </ptControls:ScreenPreview>
 
                     <controls:SettingsCard x:Uid="Settings_GeneralPage_AppTheme_SettingsCard" HeaderIcon="{ui:FontIcon Glyph=&#xE793;}">
                         <ComboBox MinWidth="{StaticResource SettingActionControlMinWidth}" SelectedIndex="{x:Bind ViewModel.Appearance.ThemeIndex, Mode=TwoWay}">
@@ -94,67 +62,19 @@
                         </ComboBox>
                     </controls:SettingsCard>
 
-                    <controls:SettingsExpander
-                        x:Uid="Settings_GeneralPage_BackdropStyle_SettingsCard"
-                        HeaderIcon="{ui:FontIcon Glyph=&#xF5EF;}"
-                        IsExpanded="{x:Bind ViewModel.Appearance.IsBackdropOpacityVisible, Mode=OneWay}">
-                        <ComboBox MinWidth="{StaticResource SettingActionControlMinWidth}" SelectedIndex="{x:Bind ViewModel.Appearance.BackdropStyleIndex, Mode=TwoWay}">
-                            <ComboBoxItem x:Uid="Settings_GeneralPage_BackdropStyle_Acrylic" />
-                            <ComboBoxItem x:Uid="Settings_GeneralPage_BackdropStyle_Transparent" />
-                            <ComboBoxItem x:Uid="Settings_GeneralPage_BackdropStyle_Mica" />
-                            <!--  Hidden: preview not working well, kept to preserve index mapping  -->
-                            <ComboBoxItem x:Uid="Settings_GeneralPage_BackdropStyle_AcrylicThin" Visibility="Collapsed" />
-                            <ComboBoxItem x:Uid="Settings_GeneralPage_BackdropStyle_MicaAlt" />
-                        </ComboBox>
-                        <controls:SettingsExpander.Items>
-                            <!--  Mica description (no opacity control)  -->
-                            <controls:SettingsCard
-                                x:Uid="Settings_GeneralPage_MicaBackdrop_SettingsCard"
-                                HorizontalContentAlignment="Stretch"
-                                ContentAlignment="Vertical"
-                                Visibility="{x:Bind ViewModel.Appearance.IsMicaBackdropDescriptionVisible, Mode=OneWay}">
-                                <TextBlock
-                                    x:Uid="Settings_GeneralPage_MicaBackdrop_DescriptionTextBlock"
-                                    Margin="24"
-                                    HorizontalAlignment="Stretch"
-                                    Foreground="{ThemeResource TextFillColorSecondaryBrush}"
-                                    HorizontalTextAlignment="Center"
-                                    TextAlignment="Center"
-                                    TextWrapping="WrapWholeWords" />
-                            </controls:SettingsCard>
-                            <!--  Opacity slider (for non-Mica styles)  -->
-                            <controls:SettingsCard x:Uid="Settings_GeneralPage_BackdropOpacity_SettingsCard" Visibility="{x:Bind ViewModel.Appearance.IsBackdropOpacityVisible, Mode=OneWay}">
-                                <Slider
-                                    MinWidth="{StaticResource SettingActionControlMinWidth}"
-                                    Maximum="100"
-                                    Minimum="0"
-                                    StepFrequency="1"
-                                    Value="{x:Bind ViewModel.Appearance.BackdropOpacity, Mode=TwoWay}" />
-                            </controls:SettingsCard>
-                        </controls:SettingsExpander.Items>
-                    </controls:SettingsExpander>
-
                     <controls:SettingsExpander
                         x:Uid="Settings_GeneralPage_Background_SettingsExpander"
                         HeaderIcon="{ui:FontIcon Glyph=&#xE790;}"
-                        IsEnabled="{x:Bind ViewModel.Appearance.IsBackgroundSettingsEnabled, Mode=OneWay}"
                         IsExpanded="{x:Bind ViewModel.Appearance.IsColorizationDetailsExpanded, Mode=TwoWay}">
-                        <Grid>
-                            <ComboBox
-                                x:Uid="Settings_GeneralPage_ColorizationMode"
-                                MinWidth="{StaticResource SettingActionControlMinWidth}"
-                                SelectedIndex="{x:Bind ViewModel.Appearance.ColorizationModeIndex, Mode=TwoWay}"
-                                Visibility="{x:Bind ViewModel.Appearance.IsBackgroundSettingsEnabled, Mode=OneWay}">
-                                <ComboBoxItem x:Uid="Settings_GeneralPage_ColorizationMode_None" />
-                                <ComboBoxItem x:Uid="Settings_GeneralPage_ColorizationMode_WindowsAccent" />
-                                <ComboBoxItem x:Uid="Settings_GeneralPage_ColorizationMode_CustomColor" />
-                                <ComboBoxItem x:Uid="Settings_GeneralPage_ColorizationMode_Image" />
-                            </ComboBox>
-                            <TextBlock
-                                x:Uid="Settings_GeneralPage_Background_NotAvailable"
-                                Foreground="{ThemeResource TextFillColorSecondaryBrush}"
-                                Visibility="{x:Bind ViewModel.Appearance.IsBackgroundNotAvailableVisible, Mode=OneWay}" />
-                        </Grid>
+                        <ComboBox
+                            x:Uid="Settings_GeneralPage_ColorizationMode"
+                            MinWidth="{StaticResource SettingActionControlMinWidth}"
+                            SelectedIndex="{x:Bind ViewModel.Appearance.ColorizationModeIndex, Mode=TwoWay}">
+                            <ComboBoxItem x:Uid="Settings_GeneralPage_ColorizationMode_None" />
+                            <ComboBoxItem x:Uid="Settings_GeneralPage_ColorizationMode_WindowsAccent" />
+                            <ComboBoxItem x:Uid="Settings_GeneralPage_ColorizationMode_CustomColor" />
+                            <ComboBoxItem x:Uid="Settings_GeneralPage_ColorizationMode_Image" />
+                        </ComboBox>
                         <controls:SettingsExpander.Items>
                             <!--  none  -->
                             <controls:SettingsCard
@@ -235,7 +155,7 @@
                                     PaletteColors="{x:Bind ViewModel.Appearance.Swatches}"
                                     SelectedColor="{x:Bind ViewModel.Appearance.ThemeColor, Mode=TwoWay}" />
                             </controls:SettingsCard>
-                            <controls:SettingsCard x:Uid="Settings_GeneralPage_BackgroundTintIntensity_SettingsCard" Visibility="{x:Bind ViewModel.Appearance.IsColorIntensityVisible, Mode=OneWay}">
+                            <controls:SettingsCard x:Uid="Settings_GeneralPage_BackgroundTintIntensity_SettingsCard" Visibility="{x:Bind ViewModel.Appearance.IsCustomTintIntensityVisible, Mode=OneWay}">
                                 <Slider
                                     MinWidth="{StaticResource SettingActionControlMinWidth}"
                                     Maximum="100"
@@ -243,17 +163,9 @@
                                     StepFrequency="1"
                                     Value="{x:Bind ViewModel.Appearance.ColorIntensity, Mode=TwoWay}" />
                             </controls:SettingsCard>
-                            <controls:SettingsCard x:Uid="Settings_GeneralPage_ImageTintIntensity_SettingsCard" Visibility="{x:Bind ViewModel.Appearance.IsImageTintIntensityVisible, Mode=OneWay}">
-                                <Slider
-                                    MinWidth="{StaticResource SettingActionControlMinWidth}"
-                                    Maximum="100"
-                                    Minimum="0"
-                                    StepFrequency="1"
-                                    Value="{x:Bind ViewModel.Appearance.BackgroundImageTintIntensity, Mode=TwoWay}" />
-                            </controls:SettingsCard>
 
-                            <!--  Reset appearance properties  -->
-                            <controls:SettingsCard x:Uid="Settings_GeneralPage_BackgroundImage_ResetProperties_SettingsCard" Visibility="{x:Bind ViewModel.Appearance.IsResetButtonVisible, Mode=OneWay}">
+                            <!--  Reset background image properties  -->
+                            <controls:SettingsCard x:Uid="Settings_GeneralPage_BackgroundImage_ResetProperties_SettingsCard" Visibility="{x:Bind ViewModel.Appearance.IsBackgroundControlsVisible, Mode=OneWay}">
                                 <StackPanel Orientation="Horizontal" Spacing="8">
                                     <Button x:Uid="Settings_GeneralPage_Background_ResetImagePropertiesButton" Command="{x:Bind ViewModel.Appearance.ResetBackgroundImagePropertiesCommand}" />
                                 </StackPanel>