.NET 8 Upgrade Silenced Errors Fix (#30469)

* [Dev][Build] .NET 8 Upgrade Silenced errors first fix.

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA1859

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA1854.

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA1860

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA1861

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA1862

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA1863

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA1864

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA1865

* [Dev][Build] .NET 8 Upgrade Silenced errors. CA2208

* [Dev][Build] .NET 8 Upgrade Silenced errors. CS9191

* [Dev][Build] .NET 8 Upgrade Silenced errors. Spell check

* [Dev][Build] .NET 8 Upgrade Silenced errors. Spell check

* [Dev][Build] .NET 8 Upgrade Silenced errors.
- CompositeFormat variables used more than once in the same file were assigned to a single variable.
- GetProcessesByName logic fix.
- String comparion fix.
- ArgumentOutOfRangeException message change.

* [Dev][Build] .NET 8 Upgrade Silenced errors.
- Null check added.
- static readonly CompositeFormat added for all fields.

src/.editorconfig

@@ -96,49 +96,4 @@ end_of_line = crlf
 dotnet_diagnostic.IDE0065.severity = none
 
 # IDE0009: Add this or Me qualification
-dotnet_diagnostic.IDE0009.severity = none
-
-# CA1859: Change type for improved performance
-dotnet_diagnostic.CA1859.severity = none
-
-# CA1716: Identifiers should not match keywords
-dotnet_diagnostic.CA1716.severity = none
-
-# SYSLIB1096: Convert to 'GeneratedComInterface'
-dotnet_diagnostic.SYSLIB1096.severity = silent
-
-# CA1309: Use ordinal StringComparison
-dotnet_diagnostic.CA1309.severity = suggestion
-
-# CS1615: Argument may not be passed with the ref keyword
-dotnet_diagnostic.CS1615.severity = none
-
-# CA1854: Prefer a 'TryGetValue' call over a Dictionary indexer access guarded by a 'ContainsKey' check to avoid double lookup
-dotnet_diagnostic.CA1854.severity = suggestion
-
-# CA1860: Avoid using 'Enumerable.Any()' extension method
-dotnet_diagnostic.CA1860.severity = suggestion
-
-# CA1861: Prefer 'static readonly' fields over constant array arguments if the called method is called repeatedly and is not mutating the passed array 
-dotnet_diagnostic.CA1861.severity = suggestion
-
-# CA1862: Prefer using 'StringComparer'/'StringComparison' to perform case-insensitive string comparisons
-dotnet_diagnostic.CA1862.severity = suggestion
-
-# CA1863: Cache a CompositeFormat for repeated use in this formatting operation
-dotnet_diagnostic.CA1863.severity = none
-
-# CA1864: Prefer the 'IDictionary.TryAdd(TKey, TValue)' method
-dotnet_diagnostic.CA1864.severity = suggestion
-
-# CA1865: Use 'string.Method(char)' instead of 'string.Method(string)' for string with single char
-dotnet_diagnostic.CA1865.severity = suggestion
-
-# CA1869: Cache and reuse 'JsonSerializerOptions' instances
-dotnet_diagnostic.CA1869.severity = none
-
-# CA2208: Instantiate argument exceptions correctly
-dotnet_diagnostic.CA2208.severity = none
-
-# CS9191: The 'ref' modifier for argument corresponding to 'in' is equivalent to 'in'. Consider using 'in' instead.
-dotnet_diagnostic.CS9191.severity = none
+dotnet_diagnostic.IDE0009.severity = none

src/common/AllExperiments/Experiments.cs

@@ -145,7 +145,7 @@ namespace AllExperiments
 
         private string? AssignmentUnit { get; set; }
 
-        private IVariantAssignmentRequest GetVariantAssignmentRequest()
+        private VariantAssignmentRequest GetVariantAssignmentRequest()
         {
             var jsonFilePath = CreateFilePath();
             try

src/common/FilePreviewCommon/Formatters/JsonFormatter.cs

@@ -12,6 +12,12 @@ namespace Microsoft.PowerToys.FilePreviewCommon.Monaco.Formatters
         /// <inheritdoc/>
         public string LangSet => "json";
 
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+            Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
+        };
+
         /// <inheritdoc/>
         public string Format(string value)
         {
@@ -22,11 +28,7 @@ namespace Microsoft.PowerToys.FilePreviewCommon.Monaco.Formatters
 
             using (var jDocument = JsonDocument.Parse(value, new JsonDocumentOptions { CommentHandling = JsonCommentHandling.Skip }))
             {
-                return JsonSerializer.Serialize(jDocument, new JsonSerializerOptions
-                {
-                    WriteIndented = true,
-                    Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
-                });
+                return JsonSerializer.Serialize(jDocument, _serializerOptions);
             }
         }
     }

src/modules/Hosts/Hosts/Settings/UserSettings.cs

@@ -17,7 +17,7 @@ namespace Hosts.Settings
         private const string HostsModuleName = "Hosts";
         private const int MaxNumberOfRetry = 5;
 
-        private readonly ISettingsUtils _settingsUtils;
+        private readonly SettingsUtils _settingsUtils;
         private readonly IFileSystemWatcher _watcher;
         private readonly object _loadingSettingsLock = new object();
 

src/modules/MouseWithoutBorders/App/Class/Common.Clipboard.cs

@@ -45,6 +45,10 @@ namespace MouseWithoutBorders
         private static string lastDragDropFile;
         private static long clipboardCopiedTime;
 
+        internal static readonly char[] Comma = new char[] { ',' };
+        internal static readonly char[] Star = new char[] { '*' };
+        internal static readonly char[] NullSeparator = new char[] { '\0' };
+
         internal static ID LastIDWithClipboardData { get; set; }
 
         internal static string LastDragDropFile
@@ -406,7 +410,7 @@ namespace MouseWithoutBorders
 
             try
             {
-                remoteMachine = postAct.Contains("mspaint,") ? postAct.Split(new char[] { ',' })[1] : Common.LastMachineWithClipboardData;
+                remoteMachine = postAct.Contains("mspaint,") ? postAct.Split(Comma)[1] : Common.LastMachineWithClipboardData;
 
                 remoteMachine = remoteMachine.Trim();
 
@@ -518,7 +522,7 @@ namespace MouseWithoutBorders
 
                 fileName = Common.GetStringU(header).Replace("\0", string.Empty);
                 Common.LogDebug("Header: " + fileName);
-                string[] headers = fileName.Split(new char[] { '*' });
+                string[] headers = fileName.Split(Star);
 
                 if (headers.Length < 2 || !long.TryParse(headers[0], out long dataSize))
                 {
@@ -973,7 +977,7 @@ namespace MouseWithoutBorders
 
             foreach (string txt in texts)
             {
-                if (string.IsNullOrEmpty(txt.Trim(new char[] { '\0' })))
+                if (string.IsNullOrEmpty(txt.Trim(NullSeparator)))
                 {
                     continue;
                 }

src/modules/MouseWithoutBorders/App/Class/Common.Encryption.cs

@@ -22,7 +22,9 @@ namespace MouseWithoutBorders
 {
     internal partial class Common
     {
-        private static SymmetricAlgorithm symAl;
+#pragma warning disable SYSLIB0021
+        private static AesCryptoServiceProvider symAl;
+#pragma warning restore SYSLIB0021
         private static string myKey;
         private static uint magicNumber;
         private static Random ran = new(); // Used for non encryption related functionality.

src/modules/MouseWithoutBorders/App/Class/Common.Helper.cs

@@ -313,7 +313,8 @@ namespace MouseWithoutBorders
                 HasSwitchedMachineSinceLastCopy = true;
 
                 // Common.CreateLowIntegrityProcess("\"" + Path.GetDirectoryName(Application.ExecutablePath) + "\\MouseWithoutBordersHelper.exe\"", string.Empty, 0, false, 0);
-                if (Process.GetProcessesByName(HelperProcessName)?.Any() != true)
+                var processes = Process.GetProcessesByName(HelperProcessName);
+                if (processes?.Length == 0)
                 {
                     Log("Unable to start helper process.");
                     Common.ShowToolTip("Error starting Mouse Without Borders Helper, clipboard sharing will not work!", 5000, ToolTipIcon.Error);
@@ -325,7 +326,8 @@ namespace MouseWithoutBorders
             }
             else
             {
-                if (Process.GetProcessesByName(HelperProcessName)?.Any() == true)
+                var processes = Process.GetProcessesByName(HelperProcessName);
+                if (processes?.Length > 0)
                 {
                     Log("Helper process found running.");
                 }
@@ -432,7 +434,7 @@ namespace MouseWithoutBorders
         {
             if (string.IsNullOrEmpty(Setting.Values.Username) && !Common.RunOnLogonDesktop)
             {
-                if (Program.User.ToLower(CultureInfo.CurrentCulture).Contains("system"))
+                if (Program.User.Contains("system", StringComparison.CurrentCultureIgnoreCase))
                 {
                     _ = Common.ImpersonateLoggedOnUserAndDoSomething(() =>
                     {

src/modules/MouseWithoutBorders/App/Class/Common.Launch.cs

@@ -84,12 +84,11 @@ namespace MouseWithoutBorders
             }
         }
 
-        [SuppressMessage("Microsoft.Globalization", "CA1304:SpecifyCultureInfo", MessageId = "System.String.ToLower", Justification = "Dotnet port with style preservation")]
         internal static int CreateProcessInInputDesktopSession(string commandLine, string arg, string desktop, short wShowWindow, bool lowIntegrity = false)
 
         // As user who runs explorer.exe
         {
-            if (!Program.User.ToLower(CultureInfo.InvariantCulture).Contains("system"))
+            if (!Program.User.Contains("system", StringComparison.InvariantCultureIgnoreCase))
             {
                 ProcessStartInfo s = new(commandLine, arg);
                 s.WindowStyle = wShowWindow != 0 ? ProcessWindowStyle.Normal : ProcessWindowStyle.Hidden;

src/modules/MouseWithoutBorders/App/Class/Common.Service.cs

@@ -45,7 +45,7 @@ namespace MouseWithoutBorders
             {
                 Process[] ps = Process.GetProcessesByName("MouseWithoutBordersSvc");
 
-                if (ps.Any())
+                if (ps.Length != 0)
                 {
                     if (DateTime.UtcNow - lastStartServiceTime < TimeSpan.FromSeconds(5))
                     {

src/modules/MouseWithoutBorders/App/Class/InputSimulation.cs

@@ -353,6 +353,7 @@ namespace MouseWithoutBorders.Class
         private static bool ctrlDown;
         private static bool altDown;
         private static bool shiftDown;
+        internal static readonly string[] Args = new string[] { "CAD" };
 
         private static void ResetModifiersState(HotkeySettings matchingHotkey)
         {
@@ -456,7 +457,7 @@ namespace MouseWithoutBorders.Class
                         if (ctrlDown && altDown)
                         {
                             ctrlDown = altDown = false;
-                            new ServiceController("MouseWithoutBordersSvc").Start(new string[] { "CAD" });
+                            new ServiceController("MouseWithoutBordersSvc").Start(Args);
                         }
 
                         break;

src/modules/MouseWithoutBorders/App/Class/MachinePool.cs

@@ -156,7 +156,7 @@ namespace MouseWithoutBorders.Class
                     }
                     else if (list.Count >= 4)
                     {
-                        throw new ArgumentException("machineNames.Length > Common.MAX_MACHINE");
+                        throw new ArgumentException($"The number of machines exceeded the maximum allowed limit of {Common.MAX_MACHINE}. Actual count: {list.Count}.");
                     }
 
                     _ = LearnMachine(name);
@@ -178,7 +178,7 @@ namespace MouseWithoutBorders.Class
                     }
                     else if (list.Count >= 4)
                     {
-                        throw new ArgumentException("infos.Length > Common.MAX_MACHINE");
+                        throw new ArgumentException($"The number of machines exceeded the maximum allowed limit of {Common.MAX_MACHINE}. Actual count: {list.Count}.");
                     }
 
                     _ = LearnMachine(inf.Name);

src/modules/MouseWithoutBorders/App/Class/MachinePoolHelpers.cs

@@ -8,6 +8,9 @@ namespace MouseWithoutBorders.Class
 {
     internal static class MachinePoolHelpers
     {
+        internal static readonly char[] Comma = new char[] { ',' };
+        internal static readonly char[] Colon = new char[] { ':' };
+
         internal static MachineInf[] LoadMachineInfoFromMachinePoolStringSetting(string s)
         {
             if (s == null)
@@ -15,7 +18,7 @@ namespace MouseWithoutBorders.Class
                 throw new ArgumentNullException(s);
             }
 
-            string[] st = s.Split(new char[] { ',' });
+            string[] st = s.Split(Comma);
 
             if (st.Length < Common.MAX_MACHINE)
             {
@@ -25,7 +28,7 @@ namespace MouseWithoutBorders.Class
             MachineInf[] rv = new MachineInf[Common.MAX_MACHINE];
             for (int i = 0; i < Common.MAX_MACHINE; i++)
             {
-                string[] mc = st[i].Split(new char[] { ':' });
+                string[] mc = st[i].Split(Colon);
                 if (mc.Length == 2)
                 {
                     rv[i].Name = mc[0];

src/modules/MouseWithoutBorders/App/Class/Setting.cs

@@ -38,7 +38,7 @@ namespace MouseWithoutBorders.Class
     {
         internal bool Changed;
 
-        private readonly ISettingsUtils _settingsUtils;
+        private readonly SettingsUtils _settingsUtils;
         private readonly object _loadingSettingsLock = new object();
         private readonly IFileSystemWatcher _watcher;
 

src/modules/MouseWithoutBorders/App/Class/SocketStuff.cs

@@ -887,14 +887,14 @@ namespace MouseWithoutBorders.Class
 
                 if (!string.IsNullOrEmpty(Setting.Values.Name2IP))
                 {
-                    string[] name2ip = Setting.Values.Name2IP.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
+                    string[] name2ip = Setting.Values.Name2IP.Split(Separator, StringSplitOptions.RemoveEmptyEntries);
                     string[] nameNip;
 
                     if (name2ip != null)
                     {
                         foreach (string st in name2ip)
                         {
-                            nameNip = st.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+                            nameNip = st.Split(BlankSeparator, StringSplitOptions.RemoveEmptyEntries);
 
                             if (nameNip != null && nameNip.Length >= 2 && nameNip[0].Trim().Equals(machineName, StringComparison.OrdinalIgnoreCase)
                                 && IPAddress.TryParse(nameNip[1].Trim(), out IPAddress ip) && !validAddressesSt.Contains("[" + ip.ToString() + "]")
@@ -1063,7 +1063,7 @@ namespace MouseWithoutBorders.Class
 
             List<IPAddress> localIPv4Addresses = GetMyIPv4Addresses().ToList();
 
-            if (!localIPv4Addresses.Any())
+            if (localIPv4Addresses.Count == 0)
             {
                 Common.Log($"No IPv4 resolved from the local machine: {Common.MachineName}");
                 return true;
@@ -1234,6 +1234,8 @@ namespace MouseWithoutBorders.Class
         }
 
         private long lastRemoteMachineID;
+        internal static readonly string[] Separator = new string[] { "\r\n" };
+        internal static readonly char[] BlankSeparator = new char[] { ' ' };
 
         private void MainTCPRoutine(TcpSk tcp, string machineName, bool isClient)
         {

src/modules/MouseWithoutBorders/App/Class/TcpServer.cs

@@ -104,6 +104,7 @@ namespace MouseWithoutBorders.Class
         }
 
         private static bool logged;
+        internal static readonly string[] Separator = new[] { " " };
 
         private void LogError(string log)
         {
@@ -146,7 +147,7 @@ namespace MouseWithoutBorders.Class
                                 try
                                 {
                                     // Assuming the format of netstat's output is fixed.
-                                    pid = int.Parse(portLogLine.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries).Last(), CultureInfo.CurrentCulture);
+                                    pid = int.Parse(portLogLine.Split(Separator, StringSplitOptions.RemoveEmptyEntries).Last(), CultureInfo.CurrentCulture);
                                     process = Process.GetProcessById(pid);
                                 }
                                 catch (Exception)

src/modules/MouseWithoutBorders/App/Form/Settings/SettingsForm.cs

@@ -123,13 +123,14 @@ namespace MouseWithoutBorders
         }
 
         private string lastMessage = string.Empty;
+        private static readonly string[] Separator = new string[] { "\r\n" };
 
         internal void ShowTip(ToolTipIcon icon, string msg, int durationInMilliseconds)
         {
             int x = 0;
             string text = msg + $"\r\n {(lastMessage.Equals(msg, StringComparison.OrdinalIgnoreCase) ? string.Empty : $"\r\nPrevious message/error: {lastMessage}")} ";
             lastMessage = msg;
-            int y = (-text.Split(new string[] { "\r\n" }, StringSplitOptions.None).Length * 15) - 30;
+            int y = (-text.Split(Separator, StringSplitOptions.None).Length * 15) - 30;
 
             toolTipManual.Hide(this);
 

src/modules/MouseWithoutBorders/App/Form/frmMatrix.cs

@@ -742,11 +742,13 @@ namespace MouseWithoutBorders
             LoadMachines();
         }
 
+        internal static readonly string[] Separator = new string[] { "\r\n" };
+
         internal void ShowTip(ToolTipIcon icon, string text, int duration)
         {
             int x = 0;
             text += "\r\n ";
-            int y = (-text.Split(new string[] { "\r\n" }, StringSplitOptions.None).Length * 15) - 30;
+            int y = (-text.Split(Separator, StringSplitOptions.None).Length * 15) - 30;
 
             toolTipManual.Hide(this);
 

src/modules/PowerOCR/PowerOCR/Helpers/ImageMethods.cs

@@ -148,6 +148,8 @@ internal sealed class ImageMethods
         return resultText.Trim();
     }
 
+    internal static readonly char[] Separator = new char[] { '\n', '\r' };
+
     public static async Task<string> ExtractText(Bitmap bmp, Language? preferredLanguage, System.Windows.Point? singlePoint = null)
     {
         Language? selectedLanguage = preferredLanguage ?? GetOCRLanguage();
@@ -211,7 +213,7 @@ internal sealed class ImageMethods
 
         if (culture.TextInfo.IsRightToLeft)
         {
-            string[] textListLines = text.ToString().Split(new char[] { '\n', '\r' });
+            string[] textListLines = text.ToString().Split(Separator);
 
             _ = text.Clear();
             foreach (string textLine in textListLines)

src/modules/PowerOCR/PowerOCR/Models/ResultTable.cs

@@ -239,7 +239,7 @@ public class ResultTable
         return rowAreas;
     }
 
-    private static void CheckIntersectionsWithWordBorders(int hitGridSpacing, ICollection<WordBorder> wordBorders, ICollection<int> rowAreas, int i, Rect horizontalLineRect)
+    private static void CheckIntersectionsWithWordBorders(int hitGridSpacing, ICollection<WordBorder> wordBorders, List<int> rowAreas, int i, Rect horizontalLineRect)
     {
         foreach (WordBorder wb in wordBorders)
         {

src/modules/PowerOCR/PowerOCR/Settings/UserSettings.cs

@@ -16,7 +16,7 @@ namespace PowerOCR.Settings
     [Export(typeof(IUserSettings))]
     public class UserSettings : IUserSettings
     {
-        private readonly ISettingsUtils _settingsUtils;
+        private readonly SettingsUtils _settingsUtils;
         private const string PowerOcrModuleName = "TextExtractor";
         private const string DefaultActivationShortcut = "Win + Shift + O";
         private const int MaxNumberOfRetry = 5;

src/modules/awake/Awake/Core/Manager.cs

@@ -28,6 +28,9 @@ namespace Awake.Core
     /// </summary>
     public class Manager
     {
+        private static readonly CompositeFormat AwakeMinutes = System.Text.CompositeFormat.Parse(Properties.Resources.AWAKE_MINUTES);
+        private static readonly CompositeFormat AwakeHours = System.Text.CompositeFormat.Parse(Properties.Resources.AWAKE_HOURS);
+
         private static BlockingCollection<ExecutionState> _stateQueue;
 
         private static CancellationTokenSource _tokenSource;
@@ -276,9 +279,9 @@ namespace Awake.Core
         {
             Dictionary<string, int> optionsList = new Dictionary<string, int>
             {
-                { string.Format(CultureInfo.InvariantCulture, Resources.AWAKE_MINUTES, 30), 1800 },
+                { string.Format(CultureInfo.InvariantCulture, AwakeMinutes, 30), 1800 },
                 { Resources.AWAKE_1_HOUR, 3600 },
-                { string.Format(CultureInfo.InvariantCulture, Resources.AWAKE_HOURS, 2), 7200 },
+                { string.Format(CultureInfo.InvariantCulture, AwakeHours, 2), 7200 },
             };
             return optionsList;
         }

src/modules/awake/Awake/Program.cs

@@ -47,6 +47,11 @@ namespace Awake
 #pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
 
         private static ManualResetEvent _exitSignal = new ManualResetEvent(false);
+        internal static readonly string[] AliasesConfigOption = new[] { "--use-pt-config", "-c" };
+        internal static readonly string[] AliasesDisplayOption = new[] { "--display-on", "-d" };
+        internal static readonly string[] AliasesTimeOption = new[] { "--time-limit", "-t" };
+        internal static readonly string[] AliasesPidOption = new[] { "--pid", "-p" };
+        internal static readonly string[] AliasesExpireAtOption = new[] { "--expire-at", "-e" };
 
         private static int Main(string[] args)
         {
@@ -86,7 +91,7 @@ namespace Awake
             Logger.LogInfo("Parsing parameters...");
 
             Option<bool> configOption = new(
-                    aliases: new[] { "--use-pt-config", "-c" },
+                    aliases: AliasesConfigOption,
                     getDefaultValue: () => false,
                     description: $"Specifies whether {Core.Constants.AppName} will be using the PowerToys configuration file for managing the state.")
             {
@@ -95,7 +100,7 @@ namespace Awake
             };
 
             Option<bool> displayOption = new(
-                    aliases: new[] { "--display-on", "-d" },
+                    aliases: AliasesDisplayOption,
                     getDefaultValue: () => true,
                     description: "Determines whether the display should be kept awake.")
             {
@@ -104,7 +109,7 @@ namespace Awake
             };
 
             Option<uint> timeOption = new(
-                    aliases: new[] { "--time-limit", "-t" },
+                    aliases: AliasesTimeOption,
                     getDefaultValue: () => 0,
                     description: "Determines the interval, in seconds, during which the computer is kept awake.")
             {
@@ -113,7 +118,7 @@ namespace Awake
             };
 
             Option<int> pidOption = new(
-                    aliases: new[] { "--pid", "-p" },
+                    aliases: AliasesPidOption,
                     getDefaultValue: () => 0,
                     description: $"Bind the execution of {Core.Constants.AppName} to another process. When the process ends, the system will resume managing the current sleep and display state.")
             {
@@ -122,7 +127,7 @@ namespace Awake
             };
 
             Option<string> expireAtOption = new(
-                    aliases: new[] { "--expire-at", "-e" },
+                    aliases: AliasesExpireAtOption,
                     getDefaultValue: () => string.Empty,
                     description: $"Determines the end date/time when {Core.Constants.AppName} will back off and let the system manage the current sleep and display state.")
             {

src/modules/colorPicker/ColorPickerUI/Behaviors/ResizeBehavior.cs

@@ -20,7 +20,7 @@ namespace ColorPicker.Behaviors
         private static readonly TimeSpan _animationTimeSmaller = _animationTime;
         private static readonly IEasingFunction _easeFunctionSmaller = new QuadraticEase() { EasingMode = EasingMode.EaseIn };
 
-        private static void CustomAnimation(DependencyProperty prop, IAnimatable sender, double fromValue, double toValue)
+        private static void CustomAnimation(DependencyProperty prop, FrameworkElement sender, double fromValue, double toValue)
         {
             // if the animation is to/from a value of 0, it will cancel the current animation
             DoubleAnimation move = null;

src/modules/colorPicker/ColorPickerUI/Controls/ColorPickerControl.xaml.cs

@@ -329,7 +329,7 @@ namespace ColorPicker.Controls
             newHexString = newHexString.ToLowerInvariant();
 
             // Return only with hashtag if user typed it before
-            bool addHashtag = oldValue.StartsWith("#", StringComparison.InvariantCulture);
+            bool addHashtag = oldValue.StartsWith('#');
             return addHashtag ? "#" + newHexString : newHexString;
         }
 
@@ -348,7 +348,7 @@ namespace ColorPicker.Controls
             else
             {
                 // Hex with or without hashtag and six characters
-                return hexCodeText.StartsWith("#", StringComparison.InvariantCulture) ? hexCodeText : "#" + hexCodeText;
+                return hexCodeText.StartsWith('#') ? hexCodeText : "#" + hexCodeText;
             }
         }
 

src/modules/colorPicker/ColorPickerUI/Helpers/SerializationHelper.cs

@@ -8,6 +8,7 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
 using System.Text.Json;
+using System.Text.Json.Serialization;
 using System.Windows.Media;
 using ColorPicker.Models;
 
@@ -21,6 +22,9 @@ namespace ColorPicker.Helpers
 
     internal static class SerializationHelper
     {
+        public static readonly JsonSerializerOptions DefaultOptions = new JsonSerializerOptions { WriteIndented = false };
+        public static readonly JsonSerializerOptions IndentedOptions = new JsonSerializerOptions { WriteIndented = true };
+
         public static Dictionary<string, Dictionary<string, string>> ConvertToDesiredColorFormats(
             IList colorsToExport,
             IEnumerable<ColorFormatModel> colorRepresentations,
@@ -116,10 +120,7 @@ namespace ColorPicker.Helpers
 
         public static string ToJson(this Dictionary<string, Dictionary<string, string>> source, bool indented = true)
         {
-            var options = new JsonSerializerOptions
-            {
-                WriteIndented = indented,
-            };
+            var options = indented ? IndentedOptions : DefaultOptions;
 
             return JsonSerializer.Serialize(source, options);
         }

src/modules/colorPicker/ColorPickerUI/Helpers/ZoomWindowHelper.cs

@@ -91,7 +91,7 @@ namespace ColorPicker.Helpers
             ShowZoomWindow(point);
         }
 
-        private static BitmapSource BitmapToImageSource(Bitmap bitmap)
+        private static BitmapImage BitmapToImageSource(Bitmap bitmap)
         {
             using (MemoryStream memory = new MemoryStream())
             {

src/modules/colorPicker/ColorPickerUI/Settings/UserSettings.cs

@@ -22,7 +22,7 @@ namespace ColorPicker.Settings
     [Export(typeof(IUserSettings))]
     public class UserSettings : IUserSettings
     {
-        private readonly ISettingsUtils _settingsUtils;
+        private readonly SettingsUtils _settingsUtils;
         private const string ColorPickerModuleName = "ColorPicker";
         private const string ColorPickerHistoryFilename = "colorHistory.json";
         private const string DefaultActivationShortcut = "Ctrl + Break";
@@ -36,6 +36,11 @@ namespace ColorPicker.Settings
 
         private bool _loadingColorsHistory;
 
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+        };
+
         [ImportingConstructor]
         public UserSettings(Helpers.IThrottledActionInvoker throttledActionInvoker)
         {
@@ -58,7 +63,7 @@ namespace ColorPicker.Settings
         {
             if (!_loadingColorsHistory)
             {
-                _settingsUtils.SaveSettings(JsonSerializer.Serialize(ColorHistory, new JsonSerializerOptions { WriteIndented = true }), ColorPickerModuleName, ColorPickerHistoryFilename);
+                _settingsUtils.SaveSettings(JsonSerializer.Serialize(ColorHistory, _serializerOptions), ColorPickerModuleName, ColorPickerHistoryFilename);
             }
         }
 

src/modules/fancyzones/editor/FancyZonesEditor/CanvasZone.xaml.cs

@@ -237,7 +237,7 @@ namespace FancyZonesEditor
         private SnappyHelperBase snappyX;
         private SnappyHelperBase snappyY;
 
-        private SnappyHelperBase NewMagneticSnapper(bool isX, ResizeMode mode)
+        private SnappyHelperMagnetic NewMagneticSnapper(bool isX, ResizeMode mode)
         {
             Rect workingArea = App.Overlay.WorkArea;
             int screenAxisOrigin = (int)(isX ? workingArea.Left : workingArea.Top);
@@ -245,7 +245,7 @@ namespace FancyZonesEditor
             return new SnappyHelperMagnetic(Model.Zones, ZoneIndex, isX, mode, screenAxisOrigin, screenAxisSize);
         }
 
-        private SnappyHelperBase NewNonMagneticSnapper(bool isX, ResizeMode mode)
+        private SnappyHelperNonMagnetic NewNonMagneticSnapper(bool isX, ResizeMode mode)
         {
             Rect workingArea = App.Overlay.WorkArea;
             int screenAxisOrigin = (int)(isX ? workingArea.Left : workingArea.Top);

src/modules/fancyzones/editor/FancyZonesEditor/Controls/CustomSliderAutomationPeer.cs

@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
+using System.Text;
 using System.Windows.Automation.Peers;
 using System.Windows.Controls;
 
@@ -10,6 +11,8 @@ namespace FancyZonesEditor.Controls
 {
     internal sealed class CustomSliderAutomationPeer : SliderAutomationPeer
     {
+        private static readonly CompositeFormat CustomSliderAnnounce = System.Text.CompositeFormat.Parse(Properties.Resources.Custom_slider_announce);
+
         private string name = string.Empty;
 
         public CustomSliderAutomationPeer(Slider owner)
@@ -29,7 +32,7 @@ namespace FancyZonesEditor.Controls
 
             string announce = string.Format(
                 CultureInfo.CurrentCulture,
-                Properties.Resources.Custom_slider_announce,
+                CustomSliderAnnounce,
                 name,
                 element.Minimum,
                 element.Maximum,

src/modules/fancyzones/editor/FancyZonesEditor/MainWindow.xaml.cs

@@ -6,6 +6,7 @@ using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Runtime.InteropServices;
+using System.Text;
 using System.Windows;
 using System.Windows.Automation;
 using System.Windows.Automation.Peers;
@@ -36,6 +37,10 @@ namespace FancyZonesEditor
 
         private bool haveTriedToGetFocusAlready;
 
+        private static readonly CompositeFormat EditTemplate = System.Text.CompositeFormat.Parse(Properties.Resources.Edit_Template);
+        private static readonly CompositeFormat PixelValue = System.Text.CompositeFormat.Parse(Properties.Resources.Pixel_Value);
+        private static readonly CompositeFormat TemplateZoneCountValue = System.Text.CompositeFormat.Parse(Properties.Resources.Template_Zone_Count_Value);
+
         public int WrapPanelItemSize { get; set; } = DefaultWrapPanelItemSize;
 
         public MainWindow(bool spanZonesAcrossMonitors, Rect workArea)
@@ -335,7 +340,7 @@ namespace FancyZonesEditor
             App.Overlay.StartEditing(_settings.SelectedModel);
 
             Keyboard.ClearFocus();
-            EditLayoutDialogTitle.Text = string.Format(CultureInfo.CurrentCulture, Properties.Resources.Edit_Template, ((LayoutModel)dataContext).Name);
+            EditLayoutDialogTitle.Text = string.Format(CultureInfo.CurrentCulture, EditTemplate, ((LayoutModel)dataContext).Name);
             await EditLayoutDialog.ShowAsync();
         }
 
@@ -567,7 +572,7 @@ namespace FancyZonesEditor
                     FrameworkElementAutomationPeer.FromElement(SensitivityInput) as SliderAutomationPeer;
                 string activityId = "sliderValueChanged";
 
-                string value = string.Format(CultureInfo.CurrentCulture, Properties.Resources.Pixel_Value, SensitivityInput.Value);
+                string value = string.Format(CultureInfo.CurrentCulture, PixelValue, SensitivityInput.Value);
 
                 if (peer != null && value != null)
                 {
@@ -588,7 +593,7 @@ namespace FancyZonesEditor
                     FrameworkElementAutomationPeer.FromElement(TemplateZoneCount) as SliderAutomationPeer;
                 string activityId = "templateZoneCountValueChanged";
 
-                string value = string.Format(CultureInfo.CurrentCulture, Properties.Resources.Template_Zone_Count_Value, TemplateZoneCount.Value);
+                string value = string.Format(CultureInfo.CurrentCulture, TemplateZoneCountValue, TemplateZoneCount.Value);
 
                 if (peer != null && value != null)
                 {
@@ -609,7 +614,7 @@ namespace FancyZonesEditor
                     FrameworkElementAutomationPeer.FromElement(Spacing) as SliderAutomationPeer;
                 string activityId = "spacingValueChanged";
 
-                string value = string.Format(CultureInfo.CurrentCulture, Properties.Resources.Pixel_Value, Spacing.Value);
+                string value = string.Format(CultureInfo.CurrentCulture, PixelValue, Spacing.Value);
 
                 if (peer != null && value != null)
                 {

src/modules/fancyzones/editor/FancyZonesEditor/Models/MainWindowSettingsModel.cs

@@ -2,6 +2,7 @@
 // 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;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
@@ -231,7 +232,7 @@ namespace FancyZonesEditor
             {
                 foreach (LayoutModel model in CustomModels)
                 {
-                    if (model.Uuid == currentApplied.ZonesetUuid.ToUpperInvariant())
+                    if (string.Equals(model.Uuid, currentApplied.ZonesetUuid, StringComparison.OrdinalIgnoreCase))
                     {
                         // found match
                         foundModel = model;

src/modules/imageresizer/tests/Properties/SettingsTests.cs

@@ -6,6 +6,7 @@ using System.Collections.Specialized;
 using System.ComponentModel;
 using System.Globalization;
 using System.Linq;
+using System.Text;
 using System.Text.Json;
 using ImageResizer.Models;
 using ImageResizer.Test;
@@ -16,6 +17,13 @@ namespace ImageResizer.Properties
     [TestClass]
     public class SettingsTests
     {
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+        };
+
+        private static readonly CompositeFormat ValueMustBeBetween = System.Text.CompositeFormat.Parse(Properties.Resources.ValueMustBeBetween);
+
         private static App _imageResizerApp;
 
         public SettingsTests()
@@ -187,7 +195,7 @@ namespace ImageResizer.Properties
 
             // Using InvariantCulture since this is used internally
             Assert.AreEqual(
-                string.Format(CultureInfo.InvariantCulture, Resources.ValueMustBeBetween, 1, 100),
+                string.Format(CultureInfo.InvariantCulture, ValueMustBeBetween, 1, 100),
                 result);
         }
 
@@ -355,9 +363,9 @@ namespace ImageResizer.Properties
 
             // Execute readFile/writefile twice and see if serialized string is still correct
             var resultWrapper = JsonSerializer.Deserialize<SettingsWrapper>(defaultInput);
-            var serializedInput = JsonSerializer.Serialize(resultWrapper, new JsonSerializerOptions() { WriteIndented = true });
+            var serializedInput = JsonSerializer.Serialize(resultWrapper, _serializerOptions);
             var resultWrapper2 = JsonSerializer.Deserialize<SettingsWrapper>(serializedInput);
-            var serializedInput2 = JsonSerializer.Serialize(resultWrapper2, new JsonSerializerOptions() { WriteIndented = true });
+            var serializedInput2 = JsonSerializer.Serialize(resultWrapper2, _serializerOptions);
 
             Assert.AreEqual(serializedInput, serializedInput2);
             Assert.AreEqual("Image Resizer", resultWrapper2.Name);

src/modules/imageresizer/ui/Models/ResizeSize.cs

@@ -12,7 +12,7 @@ namespace ImageResizer.Models
 {
     public class ResizeSize : Observable
     {
-        private static readonly IDictionary<string, string> _tokens = new Dictionary<string, string>
+        private static readonly Dictionary<string, string> _tokens = new Dictionary<string, string>
         {
             ["$small$"] = Resources.Small,
             ["$medium$"] = Resources.Medium,

src/modules/imageresizer/ui/Properties/Settings.cs

@@ -10,6 +10,7 @@ using System.Collections.Specialized;
 using System.ComponentModel;
 using System.Globalization;
 using System.IO.Abstractions;
+using System.Text;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 using System.Threading;
@@ -27,6 +28,8 @@ namespace ImageResizer.Properties
             WriteIndented = true,
         };
 
+        private static readonly CompositeFormat ValueMustBeBetween = System.Text.CompositeFormat.Parse(Properties.Resources.ValueMustBeBetween);
+
         // Used to synchronize access to the settings.json file
         private static Mutex _jsonMutex = new Mutex();
         private static string _settingsPath = _fileSystem.Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.LocalApplicationData), "Microsoft", "PowerToys", "Image Resizer", "settings.json");
@@ -122,7 +125,7 @@ namespace ImageResizer.Properties
                 if (JpegQualityLevel < 1 || JpegQualityLevel > 100)
                 {
                     // Using CurrentCulture since this is user facing
-                    return string.Format(CultureInfo.CurrentCulture, Resources.ValueMustBeBetween, 1, 100);
+                    return string.Format(CultureInfo.CurrentCulture, ValueMustBeBetween, 1, 100);
                 }
 
                 return string.Empty;

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.UnitConverter.UnitTest/InputInterpreterTests.cs

@@ -11,6 +11,7 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter.UnitTest
     [TestClass]
     public class InputInterpreterTests
     {
+#pragma warning disable CA1861 // Avoid constant arrays as arguments
         [DataTestMethod]
         [DataRow(new string[] { "1,5'" }, new string[] { "1,5", "'" })]
         [DataRow(new string[] { "1.5'" }, new string[] { "1.5", "'" })]
@@ -58,6 +59,7 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter.UnitTest
         [DataRow(new string[] { "5", "f", "in", "celsius" }, new string[] { "5", "°f", "in", "DegreeCelsius" })]
         [DataRow(new string[] { "5", "c", "in", "f" }, new string[] { "5", "°c", "in", "°f" })]
         [DataRow(new string[] { "5", "f", "in", "c" }, new string[] { "5", "°f", "in", "°c" })]
+#pragma warning restore CA1861 // Avoid constant arrays as arguments
         public void PrefixesDegrees(string[] input, string[] expectedResult)
         {
             InputInterpreter.DegreePrefixer(ref input);

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.UnitConverter/InputInterpreter.cs

@@ -2,6 +2,7 @@
 // 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;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -157,12 +158,12 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter
         /// </summary>
         public static void FeetToFt(ref string[] split)
         {
-            if (split[1].ToLowerInvariant() == "feet")
+            if (string.Equals(split[1], "feet", StringComparison.OrdinalIgnoreCase))
             {
                 split[1] = "ft";
             }
 
-            if (split[3].ToLowerInvariant() == "feet")
+            if (string.Equals(split[3], "feet", StringComparison.OrdinalIgnoreCase))
             {
                 split[3] = "ft";
             }
@@ -183,7 +184,8 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter
         public static void GallonHandler(ref string[] split, CultureInfo culture)
         {
             HashSet<string> britishCultureNames = new HashSet<string>() { "en-AI", "en-VG", "en-GB", "en-KY", "en-MS", "en-AG", "en-DM", "en-GD", "en-KN", "en-LC", "en-VC", "en-IE", "en-GY", "en-AE" };
-            if (split[1].ToLowerInvariant() == "gal" || split[1].ToLowerInvariant() == "gallon")
+            if (string.Equals(split[1], "gal", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(split[1], "gallon", StringComparison.OrdinalIgnoreCase))
             {
                 if (britishCultureNames.Contains(culture.Name))
                 {
@@ -195,7 +197,8 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter
                 }
             }
 
-            if (split[3].ToLowerInvariant() == "gal" || split[3].ToLowerInvariant() == "gallon")
+            if (string.Equals(split[3], "gal", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(split[3], "gallon", StringComparison.OrdinalIgnoreCase))
             {
                 if (britishCultureNames.Contains(culture.Name))
                 {

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.UnitConverter/Main.cs

@@ -7,6 +7,7 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
 using System.Runtime.InteropServices;
+using System.Text;
 using System.Threading;
 using System.Windows;
 using System.Windows.Input;
@@ -27,6 +28,8 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter
         private static string _icon_path;
         private bool _disposed;
 
+        private static readonly CompositeFormat CopyToClipboard = System.Text.CompositeFormat.Parse(Properties.Resources.copy_to_clipboard);
+
         public void Init(PluginInitContext context)
         {
             ArgumentNullException.ThrowIfNull(context);
@@ -61,7 +64,7 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter
                 Title = result.ToString(null),
                 IcoPath = _icon_path,
                 Score = 300,
-                SubTitle = string.Format(CultureInfo.CurrentCulture, Properties.Resources.copy_to_clipboard, result.QuantityInfo.Name),
+                SubTitle = string.Format(CultureInfo.CurrentCulture, CopyToClipboard, result.QuantityInfo.Name),
                 Action = c =>
                 {
                     var ret = false;

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.UnitConverter/UnitHandler.cs

@@ -36,7 +36,8 @@ namespace Community.PowerToys.Run.Plugin.UnitConverter
         private static Enum GetUnitEnum(string unit, QuantityInfo unitInfo)
         {
             UnitInfo first = Array.Find(unitInfo.UnitInfos, info =>
-                unit.ToLowerInvariant() == info.Name.ToLowerInvariant() || unit.ToLowerInvariant() == info.PluralName.ToLowerInvariant());
+                string.Equals(unit, info.Name, StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(unit, info.PluralName, StringComparison.OrdinalIgnoreCase));
 
             if (first != null)
             {

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.VSCodeWorkspaces/Main.cs

@@ -138,7 +138,7 @@ namespace Community.PowerToys.Run.Plugin.VSCodeWorkspaces
                 });
             }
 
-            results = results.Where(a => a.Title.ToLowerInvariant().Contains(query.Search.ToLowerInvariant())).ToList();
+            results = results.Where(a => a.Title.Contains(query.Search, StringComparison.InvariantCultureIgnoreCase)).ToList();
 
             results.ForEach(x =>
                     {

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.VSCodeWorkspaces/RemoteMachinesHelper/VSCodeRemoteMachinesApi.cs

@@ -14,6 +14,12 @@ namespace Community.PowerToys.Run.Plugin.VSCodeWorkspaces.RemoteMachinesHelper
 {
     public class VSCodeRemoteMachinesApi
     {
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            AllowTrailingCommas = true,
+            ReadCommentHandling = JsonCommentHandling.Skip,
+        };
+
         public VSCodeRemoteMachinesApi()
         {
         }
@@ -35,7 +41,7 @@ namespace Community.PowerToys.Run.Plugin.VSCodeWorkspaces.RemoteMachinesHelper
 
                         try
                         {
-                            JsonElement vscodeSettingsFile = JsonSerializer.Deserialize<JsonElement>(fileContent, new JsonSerializerOptions() { AllowTrailingCommas = true, ReadCommentHandling = JsonCommentHandling.Skip });
+                            JsonElement vscodeSettingsFile = JsonSerializer.Deserialize<JsonElement>(fileContent, _serializerOptions);
                             if (vscodeSettingsFile.TryGetProperty("remote.SSH.configFile", out var pathElement))
                             {
                                 var path = pathElement.GetString();

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.ValueGenerator/InputParser.cs

@@ -26,7 +26,7 @@ namespace Community.PowerToys.Run.Plugin.ValueGenerator
 
             string command = query.Terms[0];
 
-            if (command.ToLower(null) == "md5")
+            if (command.Equals("md5", StringComparison.OrdinalIgnoreCase))
             {
                 int commandIndex = query.RawUserQuery.IndexOf(command, StringComparison.InvariantCultureIgnoreCase);
                 string content = query.RawUserQuery.Substring(commandIndex + command.Length).Trim();
@@ -115,13 +115,13 @@ namespace Community.PowerToys.Run.Plugin.ValueGenerator
                     request = new GUIDRequest(version);
                 }
             }
-            else if (command.ToLower(null) == "base64")
+            else if (command.Equals("base64", StringComparison.OrdinalIgnoreCase))
             {
                 int commandIndex = query.RawUserQuery.IndexOf(command, StringComparison.InvariantCultureIgnoreCase);
                 string content = query.RawUserQuery.Substring(commandIndex + command.Length).Trim();
                 request = new Base64Request(Encoding.UTF8.GetBytes(content));
             }
-            else if (command.ToLower(null) == "base64d")
+            else if (command.Equals("base64d", StringComparison.OrdinalIgnoreCase))
             {
                 int commandIndex = query.RawUserQuery.IndexOf(command, StringComparison.InvariantCultureIgnoreCase);
                 string content = query.RawUserQuery.Substring(commandIndex + command.Length).Trim();

src/modules/launcher/Plugins/Community.PowerToys.Run.Plugin.WebSearch/Main.cs

@@ -6,6 +6,7 @@ using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
+using System.Text;
 using System.Windows.Controls;
 using ManagedCommon;
 using Microsoft.PowerToys.Settings.UI.Library;
@@ -38,6 +39,10 @@ namespace Community.PowerToys.Run.Plugin.WebSearch
 
         public static string PluginID => "9F1B49201C3F4BF781CAAD5CD88EA4DC";
 
+        private static readonly CompositeFormat PluginInBrowserName = System.Text.CompositeFormat.Parse(Properties.Resources.plugin_in_browser_name);
+        private static readonly CompositeFormat PluginOpen = System.Text.CompositeFormat.Parse(Properties.Resources.plugin_open);
+        private static readonly CompositeFormat PluginSearchFailed = System.Text.CompositeFormat.Parse(Properties.Resources.plugin_search_failed);
+
         public IEnumerable<PluginAdditionalOption> AdditionalOptions => new List<PluginAdditionalOption>()
         {
             new PluginAdditionalOption()
@@ -66,7 +71,7 @@ namespace Community.PowerToys.Run.Plugin.WebSearch
                 results.Add(new Result
                 {
                     Title = Properties.Resources.plugin_description.Remove(Description.Length - 1, 1),
-                    SubTitle = string.Format(CultureInfo.CurrentCulture, Properties.Resources.plugin_in_browser_name, BrowserInfo.Name ?? BrowserInfo.MSEdgeName),
+                    SubTitle = string.Format(CultureInfo.CurrentCulture, PluginInBrowserName, BrowserInfo.Name ?? BrowserInfo.MSEdgeName),
                     QueryTextDisplay = string.Empty,
                     IcoPath = _iconPath,
                     ProgramArguments = arguments,
@@ -98,7 +103,7 @@ namespace Community.PowerToys.Run.Plugin.WebSearch
                 var result = new Result
                 {
                     Title = searchTerm,
-                    SubTitle = string.Format(CultureInfo.CurrentCulture, Properties.Resources.plugin_open, BrowserInfo.Name ?? BrowserInfo.MSEdgeName),
+                    SubTitle = string.Format(CultureInfo.CurrentCulture, PluginOpen, BrowserInfo.Name ?? BrowserInfo.MSEdgeName),
                     QueryTextDisplay = searchTerm,
                     IcoPath = _iconPath,
                 };
@@ -170,7 +175,7 @@ namespace Community.PowerToys.Run.Plugin.WebSearch
 
             onPluginError = () =>
             {
-                string errorMsgString = string.Format(CultureInfo.CurrentCulture, Properties.Resources.plugin_search_failed, BrowserInfo.Name ?? BrowserInfo.MSEdgeName);
+                string errorMsgString = string.Format(CultureInfo.CurrentCulture, PluginSearchFailed, BrowserInfo.Name ?? BrowserInfo.MSEdgeName);
 
                 Log.Error(errorMsgString, this.GetType());
                 _context.API.ShowMsg(

src/modules/launcher/Plugins/Microsoft.Plugin.Folder.UnitTests/DriveOrSharedFolderTests.cs

@@ -15,6 +15,8 @@ namespace Microsoft.Plugin.Folder.UnitTests
     [TestClass]
     public class DriveOrSharedFolderTests
     {
+        private static readonly string[] DriverNames = new[] { "c:", "d:" };
+
         [DataTestMethod]
         [DataRow(@"\\test-server\testdir", true)]
         [DataRow(@"c:", true)]
@@ -33,7 +35,7 @@ namespace Microsoft.Plugin.Folder.UnitTests
             var driveInformationMock = new Mock<IDriveInformation>();
 
             driveInformationMock.Setup(r => r.GetDriveNames())
-                .Returns(() => new[] { "c:", "d:" });
+                .Returns(() => DriverNames);
 
             var folderLinksMock = new Mock<IFolderLinks>();
             var folderHelper = new FolderHelper(driveInformationMock.Object, folderLinksMock.Object);

src/modules/launcher/Plugins/Microsoft.Plugin.Folder.UnitTests/QueryEnvironmentVariableTests.cs

@@ -14,7 +14,7 @@ namespace Microsoft.Plugin.Folder.UnitTests
     [TestClass]
     public class QueryEnvironmentVariableTests
     {
-        private static IQueryEnvironmentVariable _queryEnvironmentVariable;
+        private static QueryEnvironmentVariable _queryEnvironmentVariable;
         private static MockFileSystem _fileSystem;
 
         [TestInitialize]

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/Main.cs

@@ -37,7 +37,7 @@ namespace Microsoft.Plugin.Folder
         };
 
         private static PluginInitContext _context;
-        private IContextMenu _contextMenuLoader;
+        private ContextMenuLoader _contextMenuLoader;
         private bool _disposed;
 
         public string Name => Properties.Resources.wox_plugin_folder_plugin_name;

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/Sources/QueryInternalDirectory.cs

@@ -75,7 +75,7 @@ namespace Microsoft.Plugin.Folder.Sources
             {
                 // folder exist, add \ at the end of doesn't exist
                 // Using Ordinal since this is internal and is used for a symbol
-                if (!search.EndsWith(@"\", StringComparison.Ordinal))
+                if (!search.EndsWith('\\'))
                 {
                     search += @"\";
                 }

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/Sources/Result/CreateOpenCurrentFolderResult.cs

@@ -4,6 +4,7 @@
 
 using System.Globalization;
 using System.IO;
+using System.Text;
 using Wox.Plugin;
 
 namespace Microsoft.Plugin.Folder.Sources.Result
@@ -12,6 +13,8 @@ namespace Microsoft.Plugin.Folder.Sources.Result
     {
         private readonly IShellAction _shellAction;
 
+        private static readonly CompositeFormat WoxPluginFolderSelectFolderFirstResultTitle = System.Text.CompositeFormat.Parse(Properties.Resources.wox_plugin_folder_select_folder_first_result_title);
+
         public string Search { get; set; }
 
         public CreateOpenCurrentFolderResult(string search)
@@ -29,10 +32,10 @@ namespace Microsoft.Plugin.Folder.Sources.Result
         {
             return new Wox.Plugin.Result
             {
-                Title = string.Format(CultureInfo.InvariantCulture, Properties.Resources.wox_plugin_folder_select_folder_first_result_title, new DirectoryInfo(Search).Name),
+                Title = string.Format(CultureInfo.InvariantCulture, WoxPluginFolderSelectFolderFirstResultTitle, new DirectoryInfo(Search).Name),
                 QueryTextDisplay = Search,
                 SubTitle = Properties.Resources.wox_plugin_folder_select_folder_first_result_subtitle,
-                ToolTipData = new ToolTipData(string.Format(CultureInfo.InvariantCulture, Properties.Resources.wox_plugin_folder_select_folder_first_result_title, new DirectoryInfo(Search).Name), Properties.Resources.wox_plugin_folder_select_folder_first_result_subtitle),
+                ToolTipData = new ToolTipData(string.Format(CultureInfo.InvariantCulture, WoxPluginFolderSelectFolderFirstResultTitle, new DirectoryInfo(Search).Name), Properties.Resources.wox_plugin_folder_select_folder_first_result_subtitle),
                 IcoPath = Search,
                 Score = 500,
                 Action = c => _shellAction.ExecuteSanitized(Search, contextApi),

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/Sources/Result/EnvironmentVariableResult.cs

@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
+using System.Text;
 using Wox.Infrastructure;
 using Wox.Plugin;
 
@@ -10,7 +11,9 @@ namespace Microsoft.Plugin.Folder.Sources.Result
 {
     public class EnvironmentVariableResult : IItemResult
     {
-        private readonly IShellAction _shellAction = new ShellAction();
+        private readonly ShellAction _shellAction = new ShellAction();
+
+        private static readonly CompositeFormat WoxPluginFolderSelectFolderResultSubtitle = System.Text.CompositeFormat.Parse(Properties.Resources.wox_plugin_folder_select_folder_result_subtitle);
 
         public string Search { get; set; }
 
@@ -35,8 +38,8 @@ namespace Microsoft.Plugin.Folder.Sources.Result
                 IcoPath = Path,
 
                 // Using CurrentCulture since this is user facing
-                SubTitle = string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_folder_select_folder_result_subtitle, Path),
-                ToolTipData = new ToolTipData(Title, string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_folder_select_folder_result_subtitle, Path)),
+                SubTitle = string.Format(CultureInfo.CurrentCulture, WoxPluginFolderSelectFolderResultSubtitle, Path),
+                ToolTipData = new ToolTipData(Title, string.Format(CultureInfo.CurrentCulture, WoxPluginFolderSelectFolderResultSubtitle, Path)),
                 QueryTextDisplay = Path,
                 ContextData = new SearchResult { Type = ResultType.Folder, Path = Path },
                 Action = c => _shellAction.Execute(Path, contextApi),

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/Sources/Result/FileItemResult.cs

@@ -4,6 +4,7 @@
 
 using System.Globalization;
 using System.IO.Abstractions;
+using System.Text;
 using Wox.Infrastructure;
 using Wox.Plugin;
 
@@ -11,7 +12,9 @@ namespace Microsoft.Plugin.Folder.Sources.Result
 {
     public class FileItemResult : IItemResult
     {
-        private static readonly IShellAction ShellAction = new ShellAction();
+        private static readonly ShellAction ShellAction = new ShellAction();
+
+        private static readonly CompositeFormat WoxPluginFolderSelectFileResultSubtitle = System.Text.CompositeFormat.Parse(Properties.Resources.wox_plugin_folder_select_file_result_subtitle);
 
         private readonly IPath _path;
 
@@ -38,8 +41,8 @@ namespace Microsoft.Plugin.Folder.Sources.Result
                 Title = Title,
 
                 // Using CurrentCulture since this is user facing
-                SubTitle = string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_folder_select_file_result_subtitle, FilePath),
-                ToolTipData = new ToolTipData(Title, string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_folder_select_file_result_subtitle, FilePath)),
+                SubTitle = string.Format(CultureInfo.CurrentCulture, WoxPluginFolderSelectFileResultSubtitle, FilePath),
+                ToolTipData = new ToolTipData(Title, string.Format(CultureInfo.CurrentCulture, WoxPluginFolderSelectFileResultSubtitle, FilePath)),
                 IcoPath = FilePath,
                 Action = c => ShellAction.Execute(FilePath, contextApi),
                 ContextData = new SearchResult { Type = ResultType.File, Path = FilePath },

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/Sources/Result/FolderItemResult.cs

@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
+using System.Text;
 using Wox.Infrastructure;
 using Wox.Plugin;
 
@@ -10,7 +11,9 @@ namespace Microsoft.Plugin.Folder.Sources.Result
 {
     public class FolderItemResult : IItemResult
     {
-        private static readonly IShellAction ShellAction = new ShellAction();
+        private static readonly ShellAction ShellAction = new ShellAction();
+
+        private static readonly CompositeFormat WoxPluginFolderSelectFolderResultSubtitle = System.Text.CompositeFormat.Parse(Properties.Resources.wox_plugin_folder_select_folder_result_subtitle);
 
         public FolderItemResult()
         {
@@ -39,8 +42,8 @@ namespace Microsoft.Plugin.Folder.Sources.Result
                 IcoPath = Path,
 
                 // Using CurrentCulture since this is user facing
-                SubTitle = string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_folder_select_folder_result_subtitle, Subtitle),
-                ToolTipData = new ToolTipData(Title, string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_folder_select_folder_result_subtitle, Subtitle)),
+                SubTitle = string.Format(CultureInfo.CurrentCulture, WoxPluginFolderSelectFolderResultSubtitle, Subtitle),
+                ToolTipData = new ToolTipData(Title, string.Format(CultureInfo.CurrentCulture, WoxPluginFolderSelectFolderResultSubtitle, Subtitle)),
                 QueryTextDisplay = Path,
                 ContextData = new SearchResult { Type = ResultType.Folder, Path = Path },
                 Action = c => ShellAction.Execute(Path, contextApi),

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/Sources/Result/TruncatedItemResult.cs

@@ -3,12 +3,15 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
+using System.Text;
 using Wox.Plugin;
 
 namespace Microsoft.Plugin.Folder.Sources.Result
 {
     public class TruncatedItemResult : IItemResult
     {
+        private static readonly CompositeFormat MicrosoftPluginFolderTruncationWarningSubtitle = System.Text.CompositeFormat.Parse(Properties.Resources.Microsoft_plugin_folder_truncation_warning_subtitle);
+
         public int PreTruncationCount { get; set; }
 
         public int PostTruncationCount { get; set; }
@@ -25,8 +28,8 @@ namespace Microsoft.Plugin.Folder.Sources.Result
                 QueryTextDisplay = Search,
 
                 // Using CurrentCulture since this is user facing
-                SubTitle = string.Format(CultureInfo.CurrentCulture, Properties.Resources.Microsoft_plugin_folder_truncation_warning_subtitle, PostTruncationCount, PreTruncationCount),
-                ToolTipData = new ToolTipData(Properties.Resources.Microsoft_plugin_folder_truncation_warning_title, string.Format(CultureInfo.CurrentCulture, Properties.Resources.Microsoft_plugin_folder_truncation_warning_subtitle, PostTruncationCount, PreTruncationCount)),
+                SubTitle = string.Format(CultureInfo.CurrentCulture, MicrosoftPluginFolderTruncationWarningSubtitle, PostTruncationCount, PreTruncationCount),
+                ToolTipData = new ToolTipData(Properties.Resources.Microsoft_plugin_folder_truncation_warning_title, string.Format(CultureInfo.CurrentCulture, MicrosoftPluginFolderTruncationWarningSubtitle, PostTruncationCount, PreTruncationCount)),
                 IcoPath = WarningIconPath,
             };
         }

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/Sources/ShellAction.cs

@@ -32,7 +32,7 @@ namespace Microsoft.Plugin.Folder.Sources
 
             // A network path must start with \\
             // Using Ordinal since this is internal and used with a symbol
-            if (!sanitizedPath.StartsWith("\\", StringComparison.Ordinal))
+            if (!sanitizedPath.StartsWith('\\'))
             {
                 return sanitizedPath;
             }

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/UserFolderProcessor.cs

@@ -24,7 +24,7 @@ namespace Microsoft.Plugin.Folder
                 .Select(item => CreateFolderResult(item.Nickname, item.Path, item.Path, search));
         }
 
-        private static IItemResult CreateFolderResult(string title, string subtitle, string path, string search)
+        private static UserFolderResult CreateFolderResult(string title, string subtitle, string path, string search)
         {
             return new UserFolderResult
             {

src/modules/launcher/Plugins/Microsoft.Plugin.Folder/UserFolderResult.cs

@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
+using System.Text;
 using Microsoft.Plugin.Folder.Sources;
 using Microsoft.Plugin.Folder.Sources.Result;
 using Wox.Infrastructure;
@@ -12,7 +13,7 @@ namespace Microsoft.Plugin.Folder
 {
     public class UserFolderResult : IItemResult
     {
-        private readonly IShellAction _shellAction = new ShellAction();
+        private readonly ShellAction _shellAction = new ShellAction();
 
         public string Search { get; set; }
 
@@ -22,6 +23,8 @@ namespace Microsoft.Plugin.Folder
 
         public string Subtitle { get; set; }
 
+        private static readonly CompositeFormat WoxPluginFolderSelectFolderResultSubtitle = System.Text.CompositeFormat.Parse(Properties.Resources.wox_plugin_folder_select_folder_result_subtitle);
+
         public Result Create(IPublicAPI contextApi)
         {
             return new Result(StringMatcher.FuzzySearch(Search, Title).MatchData)
@@ -30,7 +33,7 @@ namespace Microsoft.Plugin.Folder
                 IcoPath = Path,
 
                 // Using CurrentCulture since this is user facing
-                SubTitle = string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_folder_select_folder_result_subtitle, Subtitle),
+                SubTitle = string.Format(CultureInfo.CurrentCulture, WoxPluginFolderSelectFolderResultSubtitle, Subtitle),
                 QueryTextDisplay = Path,
                 ContextData = new SearchResult { Type = ResultType.Folder, Path = Path },
                 Action = c => _shellAction.Execute(Path, contextApi),

src/modules/launcher/Plugins/Microsoft.Plugin.Indexer/Main.cs

@@ -63,7 +63,7 @@ namespace Microsoft.Plugin.Indexer
             },
         };
 
-        private IContextMenu _contextMenuLoader;
+        private ContextMenuLoader _contextMenuLoader;
         private bool disposedValue;
 
         // To save the configurations of plugins

src/modules/launcher/Plugins/Microsoft.Plugin.Program.UnitTests/Storage/ListRepositoryTests.cs

@@ -16,7 +16,7 @@ namespace Microsoft.Plugin.Program.UnitTests.Storage
         {
             // Arrange
             var itemName = "originalItem1";
-            IRepository<string> repository = new ListRepository<string>() { itemName };
+            ListRepository<string> repository = new ListRepository<string>() { itemName };
 
             // Act
             var result = repository.Contains(itemName);
@@ -29,7 +29,7 @@ namespace Microsoft.Plugin.Program.UnitTests.Storage
         public void ContainsShouldReturnTrueWhenListIsUpdatedWithAdd()
         {
             // Arrange
-            IRepository<string> repository = new ListRepository<string>();
+            ListRepository<string> repository = new ListRepository<string>();
 
             // Act
             var itemName = "newItem";
@@ -45,7 +45,7 @@ namespace Microsoft.Plugin.Program.UnitTests.Storage
         {
             // Arrange
             var itemName = "originalItem1";
-            IRepository<string> repository = new ListRepository<string>() { itemName };
+            ListRepository<string> repository = new ListRepository<string>() { itemName };
 
             // Act
             repository.Remove(itemName);

src/modules/launcher/Plugins/Microsoft.Plugin.Program.UnitTests/Storage/Win32ProgramRepositoryTest.cs

@@ -25,6 +25,7 @@ namespace Microsoft.Plugin.Program.UnitTests.Storage
 
         private List<IFileSystemWatcherWrapper> _fileSystemWatchers;
         private List<Mock<IFileSystemWatcherWrapper>> _fileSystemMocks;
+        private static readonly string[] Path = new string[] { "URL=steam://rungameid/1258080", "IconFile=iconFile" };
 
         [TestInitialize]
         public void SetFileSystemWatchers()
@@ -219,7 +220,7 @@ namespace Microsoft.Plugin.Program.UnitTests.Storage
 
             // File.ReadAllLines must be mocked for url applications
             var mockFile = new Mock<IFile>();
-            mockFile.Setup(m => m.ReadAllLines(It.IsAny<string>())).Returns(new string[] { "URL=steam://rungameid/1258080", "IconFile=iconFile" });
+            mockFile.Setup(m => m.ReadAllLines(It.IsAny<string>())).Returns(Path);
             Win32Program.FileWrapper = mockFile.Object;
 
             // Act
@@ -268,7 +269,7 @@ namespace Microsoft.Plugin.Program.UnitTests.Storage
 
             // File.ReadAllLines must be mocked for url applications
             var mockFile = new Mock<IFile>();
-            mockFile.Setup(m => m.ReadLines(It.IsAny<string>())).Returns(new string[] { "URL=steam://rungameid/1258080", "IconFile=iconFile" });
+            mockFile.Setup(m => m.ReadLines(It.IsAny<string>())).Returns(Path);
             Win32Program.FileWrapper = mockFile.Object;
 
             string fullPath = directory + "\\" + path;
@@ -292,7 +293,7 @@ namespace Microsoft.Plugin.Program.UnitTests.Storage
 
             // File.ReadAllLines must be mocked for url applications
             var mockFile = new Mock<IFile>();
-            mockFile.Setup(m => m.ReadLines(It.IsAny<string>())).Returns(new string[] { "URL=steam://rungameid/1258080", "IconFile=iconFile" });
+            mockFile.Setup(m => m.ReadLines(It.IsAny<string>())).Returns(Path);
             Win32Program.FileWrapper = mockFile.Object;
 
             string oldFullPath = directory + "\\" + oldpath;

src/modules/launcher/Plugins/Microsoft.Plugin.Program/Main.cs

@@ -91,7 +91,7 @@ namespace Microsoft.Plugin.Program
                 .Where(r => r?.Score > 0)
                 .ToArray();
 
-            if (result.Any())
+            if (result.Length != 0)
             {
                 var maxScore = result.Max(x => x.Score);
                 return result

src/modules/launcher/Plugins/Microsoft.Plugin.Program/Programs/UWPApplication.cs

@@ -308,7 +308,7 @@ namespace Microsoft.Plugin.Program.Programs
                 {
                     parsed = prefix + key;
                 }
-                else if (key.StartsWith("/", StringComparison.Ordinal))
+                else if (key.StartsWith('/'))
                 {
                     parsed = prefix + "//" + key;
                 }

src/modules/launcher/Plugins/Microsoft.Plugin.Program/Programs/Win32Program.cs

@@ -761,7 +761,7 @@ namespace Microsoft.Plugin.Program.Programs
                 .ToList() ?? Enumerable.Empty<string>();
 
         // Function to obtain the list of applications, the locations of which have been added to the env variable PATH
-        private static IEnumerable<string> PathEnvironmentProgramPaths(IList<string> suffixes)
+        private static List<string> PathEnvironmentProgramPaths(IList<string> suffixes)
         {
             // To get all the locations stored in the PATH env variable
             var pathEnvVariable = Environment.GetEnvironmentVariable("PATH");
@@ -788,7 +788,7 @@ namespace Microsoft.Plugin.Program.Programs
                 .SelectMany(indexLocation => ProgramPaths(indexLocation, suffixes))
                 .ToList();
 
-        private static IEnumerable<string> StartMenuProgramPaths(IList<string> suffixes)
+        private static List<string> StartMenuProgramPaths(IList<string> suffixes)
         {
             var directory1 = Environment.GetFolderPath(Environment.SpecialFolder.StartMenu);
             var directory2 = Environment.GetFolderPath(Environment.SpecialFolder.CommonStartMenu);
@@ -797,7 +797,7 @@ namespace Microsoft.Plugin.Program.Programs
             return IndexPath(suffixes, indexLocation);
         }
 
-        private static IEnumerable<string> DesktopProgramPaths(IList<string> suffixes)
+        private static List<string> DesktopProgramPaths(IList<string> suffixes)
         {
             var directory1 = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
             var directory2 = Environment.GetFolderPath(Environment.SpecialFolder.CommonDesktopDirectory);
@@ -807,7 +807,7 @@ namespace Microsoft.Plugin.Program.Programs
             return IndexPath(suffixes, indexLocation);
         }
 
-        private static IEnumerable<string> RegistryAppProgramPaths(IList<string> suffixes)
+        private static List<string> RegistryAppProgramPaths(IList<string> suffixes)
         {
             // https://msdn.microsoft.com/library/windows/desktop/ee872121
             const string appPaths = @"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths";

src/modules/launcher/Plugins/Microsoft.Plugin.Shell/Main.cs

@@ -11,6 +11,7 @@ using System.IO;
 using System.IO.Abstractions;
 using System.Linq;
 using System.Reflection;
+using System.Text;
 using System.Windows.Input;
 using ManagedCommon;
 using Microsoft.Plugin.Shell.Properties;
@@ -33,6 +34,8 @@ namespace Microsoft.Plugin.Shell
         private readonly ShellPluginSettings _settings;
         private readonly PluginJsonStorage<ShellPluginSettings> _storage;
 
+        private static readonly CompositeFormat WoxPluginCmdCmdHasBeenExecutedTimes = System.Text.CompositeFormat.Parse(Properties.Resources.wox_plugin_cmd_cmd_has_been_executed_times);
+
         private string IconPath { get; set; }
 
         public string Name => Properties.Resources.wox_plugin_cmd_plugin_name;
@@ -71,6 +74,7 @@ namespace Microsoft.Plugin.Shell
         };
 
         private PluginInitContext _context;
+        private static readonly char[] Separator = new[] { ' ' };
 
         public Main()
         {
@@ -123,7 +127,7 @@ namespace Microsoft.Plugin.Shell
                     if (m.Key == cmd)
                     {
                         // Using CurrentCulture since this is user facing
-                        result.SubTitle = Properties.Resources.wox_plugin_cmd_plugin_name + ": " + string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_cmd_cmd_has_been_executed_times, m.Value);
+                        result.SubTitle = Properties.Resources.wox_plugin_cmd_plugin_name + ": " + string.Format(CultureInfo.CurrentCulture, WoxPluginCmdCmdHasBeenExecutedTimes, m.Value);
                         return null;
                     }
 
@@ -132,7 +136,7 @@ namespace Microsoft.Plugin.Shell
                         Title = m.Key,
 
                         // Using CurrentCulture since this is user facing
-                        SubTitle = Properties.Resources.wox_plugin_cmd_plugin_name + ": " + string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_cmd_cmd_has_been_executed_times, m.Value),
+                        SubTitle = Properties.Resources.wox_plugin_cmd_plugin_name + ": " + string.Format(CultureInfo.CurrentCulture, WoxPluginCmdCmdHasBeenExecutedTimes, m.Value),
                         IcoPath = IconPath,
                         Action = c =>
                         {
@@ -171,7 +175,7 @@ namespace Microsoft.Plugin.Shell
                     Title = m.Key,
 
                     // Using CurrentCulture since this is user facing
-                    SubTitle = Properties.Resources.wox_plugin_cmd_plugin_name + ": " + string.Format(CultureInfo.CurrentCulture, Properties.Resources.wox_plugin_cmd_cmd_has_been_executed_times, m.Value),
+                    SubTitle = Properties.Resources.wox_plugin_cmd_plugin_name + ": " + string.Format(CultureInfo.CurrentCulture, WoxPluginCmdCmdHasBeenExecutedTimes, m.Value),
                     IcoPath = IconPath,
                     Action = c =>
                     {
@@ -285,7 +289,7 @@ namespace Microsoft.Plugin.Shell
                 }
                 else
                 {
-                    var parts = command.Split(new[] { ' ' }, 2);
+                    var parts = command.Split(Separator, 2);
                     if (parts.Length == 2)
                     {
                         var filename = parts[0];

src/modules/launcher/Plugins/Microsoft.Plugin.Shell/ShellPluginSettings.cs

@@ -25,13 +25,13 @@ namespace Microsoft.Plugin.Shell
 
         public void AddCmdHistory(string cmdName)
         {
-            if (Count.ContainsKey(cmdName))
+            if (Count.TryGetValue(cmdName, out int currentCount))
             {
-                Count[cmdName] += 1;
+                Count[cmdName] = currentCount + 1;
             }
             else
             {
-                Count.Add(cmdName, 1);
+                Count[cmdName] = 1;
             }
         }
     }

src/modules/launcher/Plugins/Microsoft.Plugin.WindowWalker/Components/ContextMenuHelper.cs

@@ -51,8 +51,8 @@ namespace Microsoft.Plugin.WindowWalker.Components
 
             // Hide menu if Explorer.exe is the shell process or the process name is ApplicationFrameHost.exe
             // In the first case we would crash the windows ui and in the second case we would kill the generic process for uwp apps.
-            if (!windowData.Process.IsShellProcess && !(windowData.Process.IsUwpApp & windowData.Process.Name.ToLower(System.Globalization.CultureInfo.InvariantCulture) == "applicationframehost.exe")
-                && !(windowData.Process.IsFullAccessDenied & WindowWalkerSettings.Instance.HideKillProcessOnElevatedProcesses))
+            if (!windowData.Process.IsShellProcess && !(windowData.Process.IsUwpApp && string.Equals(windowData.Process.Name, "ApplicationFrameHost.exe", StringComparison.OrdinalIgnoreCase))
+                && !(windowData.Process.IsFullAccessDenied && WindowWalkerSettings.Instance.HideKillProcessOnElevatedProcesses))
             {
                 contextMenu.Add(new ContextMenuResult
                 {

src/modules/launcher/Plugins/Microsoft.Plugin.WindowWalker/Components/ResultHelper.cs

@@ -1,6 +1,7 @@
 // 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;
 using System.Collections.Generic;
 using Microsoft.Plugin.WindowWalker.Properties;
 using Wox.Infrastructure;
@@ -26,7 +27,7 @@ namespace Microsoft.Plugin.WindowWalker.Components
 
             foreach (SearchResult x in searchControllerResults)
             {
-                if (x.Result.Process.Name.ToLower(System.Globalization.CultureInfo.InvariantCulture) == "explorer.exe" && x.Result.Process.IsShellProcess)
+                if (string.Equals(x.Result.Process.Name, "explorer.exe", StringComparison.OrdinalIgnoreCase) && x.Result.Process.IsShellProcess)
                 {
                     addExplorerInfo = true;
                 }

src/modules/launcher/Plugins/Microsoft.Plugin.WindowWalker/Components/Window.cs

@@ -378,7 +378,7 @@ namespace Microsoft.Plugin.WindowWalker.Components
 
                 // Correct the process data if the window belongs to a uwp app hosted by 'ApplicationFrameHost.exe'
                 // (This only works if the window isn't minimized. For minimized windows the required child window isn't assigned.)
-                if (_handlesToProcessCache[hWindow].Name.ToUpperInvariant() == "APPLICATIONFRAMEHOST.EXE")
+                if (string.Equals(_handlesToProcessCache[hWindow].Name, "ApplicationFrameHost.exe", StringComparison.OrdinalIgnoreCase))
                 {
                     new Task(() =>
                     {

src/modules/launcher/Plugins/Microsoft.Plugin.WindowWalker/Components/WindowProcess.cs

@@ -113,7 +113,7 @@ namespace Microsoft.Plugin.WindowWalker.Components
         internal WindowProcess(uint pid, uint tid, string name)
         {
             UpdateProcessInfo(pid, tid, name);
-            _isUwpApp = Name.ToUpperInvariant().Equals("APPLICATIONFRAMEHOST.EXE", StringComparison.Ordinal);
+            _isUwpApp = string.Equals(Name, "ApplicationFrameHost.exe", StringComparison.OrdinalIgnoreCase);
         }
 
         /// <summary>

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.Calculator/BracketHelper.cs

@@ -45,12 +45,12 @@ namespace Microsoft.PowerToys.Run.Plugin.Calculator
                         continue;
                     default:
                         {
-                            throw new ArgumentOutOfRangeException(nameof(direction), direction, "Can't process value");
+                            throw new ArgumentOutOfRangeException($"Can't process value (Parameter direction: {direction})");
                         }
                 }
             }
 
-            return !trailTest.Any();
+            return trailTest.Count == 0;
         }
 
         private static (TrailDirection Direction, TrailType Type) BracketTrail(char @char)

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.Calculator/Main.cs

@@ -34,6 +34,9 @@ namespace Microsoft.PowerToys.Run.Plugin.Calculator
 
         private bool _disposed;
 
+        private static readonly CompositeFormat WoxPluginCalculatorInEnFormatDescription = System.Text.CompositeFormat.Parse(Properties.Resources.wox_plugin_calculator_in_en_format_description);
+        private static readonly CompositeFormat WoxPluginCalculatorOutEnFormatDescription = System.Text.CompositeFormat.Parse(Properties.Resources.wox_plugin_calculator_out_en_format_description);
+
         public IEnumerable<PluginAdditionalOption> AdditionalOptions => new List<PluginAdditionalOption>()
         {
             // The number examples has to be created at runtime to prevent translation.
@@ -41,14 +44,14 @@ namespace Microsoft.PowerToys.Run.Plugin.Calculator
             {
                 Key = "InputUseEnglishFormat",
                 DisplayLabel = Resources.wox_plugin_calculator_in_en_format,
-                DisplayDescription = string.Format(CultureInfo.CurrentCulture, Resources.wox_plugin_calculator_in_en_format_description, 1000.55.ToString("N2", new CultureInfo("en-us"))),
+                DisplayDescription = string.Format(CultureInfo.CurrentCulture, WoxPluginCalculatorInEnFormatDescription, 1000.55.ToString("N2", new CultureInfo("en-us"))),
                 Value = false,
             },
             new PluginAdditionalOption()
             {
                 Key = "OutputUseEnglishFormat",
                 DisplayLabel = Resources.wox_plugin_calculator_out_en_format,
-                DisplayDescription = string.Format(CultureInfo.CurrentCulture, Resources.wox_plugin_calculator_out_en_format_description, 1000.55.ToString("G", new CultureInfo("en-us"))),
+                DisplayDescription = string.Format(CultureInfo.CurrentCulture, WoxPluginCalculatorOutEnFormatDescription, 1000.55.ToString("G", new CultureInfo("en-us"))),
                 Value = false,
             },
         };

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.Registry/Helper/RegistryHelper.cs

@@ -152,7 +152,7 @@ namespace Microsoft.PowerToys.Run.Plugin.Registry.Helper
         /// <param name="parentKey">The parent-key, also the root to start the search</param>
         /// <param name="searchSubKey">The sub-key to find</param>
         /// <returns>A list with all found registry sub-keys</returns>
-        private static ICollection<RegistryEntry> FindSubKey(in RegistryKey parentKey, in string searchSubKey)
+        private static Collection<RegistryEntry> FindSubKey(in RegistryKey parentKey, in string searchSubKey)
         {
             var list = new Collection<RegistryEntry>();
 
@@ -204,7 +204,7 @@ namespace Microsoft.PowerToys.Run.Plugin.Registry.Helper
         /// <param name="parentKey">The registry parent-key</param>
         /// <param name="maxCount">(optional) The maximum count of the results</param>
         /// <returns>A list with all found registry sub-keys</returns>
-        private static ICollection<RegistryEntry> GetAllSubKeys(in RegistryKey parentKey, in int maxCount = 50)
+        private static Collection<RegistryEntry> GetAllSubKeys(in RegistryKey parentKey, in int maxCount = 50)
         {
             var list = new Collection<RegistryEntry>();
 

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.Registry/Helper/ResultHelper.cs

@@ -80,7 +80,7 @@ namespace Microsoft.PowerToys.Run.Plugin.Registry.Helper
                 return new List<Result>(0);
             }
 
-            ICollection<KeyValuePair<string, object>> valueList = new List<KeyValuePair<string, object>>(key.ValueCount);
+            List<KeyValuePair<string, object>> valueList = new List<KeyValuePair<string, object>>(key.ValueCount);
 
             var resultList = new List<Result>();
 

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.System/Components/NetworkConnectionProperties.cs

@@ -10,6 +10,7 @@ using System.Linq;
 using System.Net;
 using System.Net.NetworkInformation;
 using System.Net.Sockets;
+using System.Text;
 using Microsoft.PowerToys.Run.Plugin.System.Properties;
 
 namespace Microsoft.PowerToys.Run.Plugin.System.Components
@@ -114,6 +115,9 @@ namespace Microsoft.PowerToys.Run.Plugin.System.Components
         /// </summary>
         internal IPAddressCollection WinsServers { get; private set; }
 
+        private static readonly CompositeFormat MicrosoftPluginSysGbps = CompositeFormat.Parse(Properties.Resources.Microsoft_plugin_sys_Gbps);
+        private static readonly CompositeFormat MicrosoftPluginSysMbps = CompositeFormat.Parse(Properties.Resources.Microsoft_plugin_sys_Mbps);
+
         /// <summary>
         /// Initializes a new instance of the <see cref="NetworkConnectionProperties"/> class.
         /// This private constructor is used when we crete the list of adapter (properties) by calling <see cref="NetworkConnectionProperties.GetList()"/>.
@@ -286,7 +290,7 @@ namespace Microsoft.PowerToys.Run.Plugin.System.Components
         /// <returns>A formatted string like `100 MB/s`</returns>
         private static string GetFormattedSpeedValue(long speed)
         {
-            return (speed >= 1000000000) ? string.Format(CultureInfo.InvariantCulture, Resources.Microsoft_plugin_sys_Gbps, speed / 1000000000) : string.Format(CultureInfo.InvariantCulture, Resources.Microsoft_plugin_sys_Mbps, speed / 1000000);
+            return (speed >= 1000000000) ? string.Format(CultureInfo.InvariantCulture, MicrosoftPluginSysGbps, speed / 1000000000) : string.Format(CultureInfo.InvariantCulture, MicrosoftPluginSysMbps, speed / 1000000);
         }
 
         /// <summary>

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.TimeDate/Main.cs

@@ -5,6 +5,7 @@
 using System;
 using System.Collections.Generic;
 using System.Globalization;
+using System.Text;
 using System.Windows.Controls;
 using System.Windows.Input;
 using ManagedCommon;
@@ -27,6 +28,8 @@ namespace Microsoft.PowerToys.Run.Plugin.TimeDate
 
         public static string PluginID => "5D69806A5A474115821C3E4C56B9C793";
 
+        private static readonly CompositeFormat MicrosoftPluginTimedatePluginDescription = System.Text.CompositeFormat.Parse(Properties.Resources.Microsoft_plugin_timedate_plugin_description);
+
         public IEnumerable<PluginAdditionalOption> AdditionalOptions
         {
             get
@@ -93,7 +96,7 @@ namespace Microsoft.PowerToys.Run.Plugin.TimeDate
             string timeExample = Resources.Microsoft_plugin_timedate_plugin_description_example_time + "::" + DateTime.Now.ToString("T", CultureInfo.CurrentCulture);
             string dayExample = Resources.Microsoft_plugin_timedate_plugin_description_example_day + "::" + DateTime.Now.ToString("d", CultureInfo.CurrentCulture);
             string calendarWeekExample = Resources.Microsoft_plugin_timedate_plugin_description_example_calendarWeek + "::" + DateTime.Now.ToString("d", CultureInfo.CurrentCulture);
-            return string.Format(CultureInfo.CurrentCulture, Resources.Microsoft_plugin_timedate_plugin_description, Resources.Microsoft_plugin_timedate_plugin_description_example_day, dayExample, timeExample, calendarWeekExample);
+            return string.Format(CultureInfo.CurrentCulture, MicrosoftPluginTimedatePluginDescription, Resources.Microsoft_plugin_timedate_plugin_description_example_day, dayExample, timeExample, calendarWeekExample);
         }
 
         public string GetTranslatedPluginTitle()

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.WindowsSettings/Helper/JsonSettingsListHelper.cs

@@ -22,6 +22,10 @@ namespace Microsoft.PowerToys.Run.Plugin.WindowsSettings.Helper
         /// </summary>
         private const string _settingsFile = "WindowsSettings.json";
 
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+        };
+
         /// <summary>
         /// Read all possible Windows settings.
         /// </summary>
@@ -42,7 +46,7 @@ namespace Microsoft.PowerToys.Run.Plugin.WindowsSettings.Helper
                     throw new ArgumentNullException(nameof(stream), "stream is null");
                 }
 
-                var options = new JsonSerializerOptions();
+                var options = _serializerOptions;
                 options.Converters.Add(new JsonStringEnumConverter());
 
                 using var reader = new StreamReader(stream);

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.WindowsTerminal/Main.cs

@@ -23,7 +23,7 @@ namespace Microsoft.PowerToys.Run.Plugin.WindowsTerminal
         private const string OpenNewTab = nameof(OpenNewTab);
         private const string OpenQuake = nameof(OpenQuake);
         private const string ShowHiddenProfiles = nameof(ShowHiddenProfiles);
-        private readonly ITerminalQuery _terminalQuery = new TerminalQuery();
+        private readonly TerminalQuery _terminalQuery = new TerminalQuery();
         private PluginInitContext _context;
         private bool _openNewTab;
         private bool _openQuake;
@@ -199,7 +199,7 @@ namespace Microsoft.PowerToys.Run.Plugin.WindowsTerminal
             _showHiddenProfiles = showHiddenProfiles;
         }
 
-        private ImageSource GetLogo(TerminalPackage terminal)
+        private BitmapImage GetLogo(TerminalPackage terminal)
         {
             var aumid = terminal.AppUserModelId;
 

src/modules/launcher/PowerLauncher/Converters/HighlightTextConverter.cs

@@ -20,7 +20,7 @@ namespace PowerLauncher.Converters
             var highlightData = values[1] as List<int>;
             var selected = values[2] as bool? == true;
 
-            if (highlightData == null || !highlightData.Any())
+            if (highlightData == null || highlightData.Count == 0)
             {
                 // No highlight data, just return the text
                 return new Run(text);

src/modules/launcher/PowerLauncher/Helper/SingleInstance`1.cs

@@ -92,7 +92,7 @@ namespace PowerLauncher.Helper
         /// Gets command line args - for ClickOnce deployed applications, command line args may not be passed directly, they have to be retrieved.
         /// </summary>
         /// <returns>List of command line arg strings.</returns>
-        private static IList<string> GetCommandLineArgs(string uniqueApplicationName)
+        private static List<string> GetCommandLineArgs(string uniqueApplicationName)
         {
             string[] args = null;
 
@@ -116,7 +116,7 @@ namespace PowerLauncher.Helper
                 {
                     try
                     {
-                        using (TextReader reader = new StreamReader(cmdLinePath, Encoding.Unicode))
+                        using (StreamReader reader = new StreamReader(cmdLinePath, Encoding.Unicode))
                         {
                             args = NativeMethods.CommandLineToArgvW(reader.ReadToEnd());
                         }

src/modules/launcher/PowerLauncher/Plugin/PluginManager.cs

@@ -10,6 +10,7 @@ using System.Globalization;
 using System.IO.Abstractions;
 using System.Linq;
 using System.Reflection;
+using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
 using global::PowerToys.GPOWrapper;
@@ -29,6 +30,8 @@ namespace PowerLauncher.Plugin
         private static readonly IDirectory Directory = FileSystem.Directory;
         private static readonly object AllPluginsLock = new object();
 
+        private static readonly CompositeFormat FailedToInitializePluginsTitle = System.Text.CompositeFormat.Parse(Properties.Resources.FailedToInitializePluginsTitle);
+
         private static IEnumerable<PluginPair> _contextMenuPlugins = new List<PluginPair>();
 
         private static List<PluginPair> _allPlugins;
@@ -53,7 +56,7 @@ namespace PowerLauncher.Plugin
                         if (_allPlugins == null)
                         {
                             _allPlugins = PluginConfig.Parse(Directories)
-                                .Where(x => x.Language.ToUpperInvariant() == AllowedLanguage.CSharp)
+                                .Where(x => string.Equals(x.Language, AllowedLanguage.CSharp, StringComparison.OrdinalIgnoreCase))
                                 .GroupBy(x => x.ID) // Deduplicates plugins by ID, choosing for each ID the highest DLL product version. This fixes issues such as https://github.com/microsoft/PowerToys/issues/14701
                                 .Select(g => g.OrderByDescending(x => // , where an upgrade didn't remove older versions of the plugins.
                                 {
@@ -178,10 +181,10 @@ namespace PowerLauncher.Plugin
 
             _contextMenuPlugins = GetPluginsForInterface<IContextMenu>();
 
-            if (failedPlugins.Any())
+            if (!failedPlugins.IsEmpty)
             {
                 var failed = string.Join(",", failedPlugins.Select(x => x.Metadata.Name));
-                var description = string.Format(CultureInfo.CurrentCulture, Resources.FailedToInitializePluginsDescription, failed);
+                var description = string.Format(CultureInfo.CurrentCulture, FailedToInitializePluginsTitle, failed);
                 Application.Current.Dispatcher.InvokeAsync(() => API.ShowMsg(Resources.FailedToInitializePluginsTitle, description, string.Empty, false));
             }
         }

src/modules/launcher/PowerLauncher/SettingsReader.cs

@@ -24,7 +24,7 @@ namespace PowerLauncher
     // Watch for /Local/Microsoft/PowerToys/Launcher/Settings.json changes
     public class SettingsReader : BaseModel
     {
-        private readonly ISettingsUtils _settingsUtils;
+        private readonly SettingsUtils _settingsUtils;
 
         private const int MaxRetries = 10;
         private static readonly object _readSyncObject = new object();
@@ -286,7 +286,7 @@ namespace PowerLauncher
             settings.Plugins = defaultPlugins.Values.ToList();
         }
 
-        private static IEnumerable<PluginAdditionalOption> CombineAdditionalOptions(IEnumerable<PluginAdditionalOption> defaultAdditionalOptions, IEnumerable<PluginAdditionalOption> additionalOptions)
+        private static Dictionary<string, PluginAdditionalOption>.ValueCollection CombineAdditionalOptions(IEnumerable<PluginAdditionalOption> defaultAdditionalOptions, IEnumerable<PluginAdditionalOption> additionalOptions)
         {
             var defaultOptions = defaultAdditionalOptions.ToDictionary(x => x.Key);
             foreach (var option in additionalOptions)

src/modules/launcher/PowerLauncher/ViewModel/MainViewModel.cs

@@ -8,6 +8,7 @@ using System.Collections.ObjectModel;
 using System.Globalization;
 using System.Linq;
 using System.Reflection;
+using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
@@ -63,6 +64,8 @@ namespace PowerLauncher.ViewModel
 
         internal HotkeyManager HotkeyManager { get; private set; }
 
+        private static readonly CompositeFormat RegisterHotkeyFailed = System.Text.CompositeFormat.Parse(Properties.Resources.registerHotkeyFailed);
+
         public MainViewModel(PowerToysRunSettings settings, CancellationToken nativeThreadCancelToken)
         {
             _saved = false;
@@ -897,7 +900,7 @@ namespace PowerLauncher.ViewModel
             }
             catch (Exception)
             {
-                string errorMsg = string.Format(CultureInfo.InvariantCulture, Properties.Resources.registerHotkeyFailed, hotkeyStr);
+                string errorMsg = string.Format(CultureInfo.InvariantCulture, RegisterHotkeyFailed, hotkeyStr);
                 MessageBox.Show(errorMsg);
             }
         }

src/modules/launcher/Wox.Infrastructure/Exception/ExceptionFormatter.cs

@@ -127,7 +127,7 @@ namespace Wox.Infrastructure.Exception
                     foreach (string versionKeyName in ndpKey.GetSubKeyNames())
                     {
                         // Using InvariantCulture since this is internal and involves version key
-                        if (versionKeyName.StartsWith("v", StringComparison.InvariantCulture))
+                        if (versionKeyName.StartsWith('v'))
                         {
                             RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
                             string name = (string)versionKey.GetValue("Version", string.Empty);

src/modules/launcher/Wox.Infrastructure/Helper.cs

@@ -21,6 +21,15 @@ namespace Wox.Infrastructure
         private static readonly IFileInfoFactory FileInfo = FileSystem.FileInfo;
         private static readonly IDirectory Directory = FileSystem.Directory;
 
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+            Converters =
+            {
+                new JsonStringEnumConverter(),
+            },
+        };
+
         /// <summary>
         /// http://www.yinwang.org/blog-cn/2015/11/21/programming-philosophy
         /// </summary>
@@ -81,14 +90,7 @@ namespace Wox.Infrastructure
 
         public static string Formatted<T>(this T t)
         {
-            var formatted = JsonSerializer.Serialize(t, new JsonSerializerOptions
-            {
-                WriteIndented = true,
-                Converters =
-                {
-                    new JsonStringEnumConverter(),
-                },
-            });
+            var formatted = JsonSerializer.Serialize(t, _serializerOptions);
 
             return formatted;
         }

src/modules/launcher/Wox.Infrastructure/Image/ImageLoader.cs

@@ -29,7 +29,7 @@ namespace Wox.Infrastructure.Image
         private static readonly ImageCache ImageCache = new ImageCache();
         private static readonly ConcurrentDictionary<string, string> GuidToKey = new ConcurrentDictionary<string, string>();
 
-        private static IImageHashGenerator _hashGenerator;
+        private static ImageHashGenerator _hashGenerator;
 
         public static string ErrorIconPath { get; set; } = Constant.LightThemedErrorIcon;
 

src/modules/launcher/Wox.Infrastructure/Storage/ListRepository`1.cs

@@ -44,7 +44,7 @@ namespace Wox.Infrastructure.Storage
 
         public bool Any()
         {
-            return _items.Any();
+            return !_items.IsEmpty;
         }
 
         public void Add(T insertedItem)

src/modules/launcher/Wox.Infrastructure/StringMatcher.cs

@@ -29,6 +29,8 @@ namespace Wox.Infrastructure
 
         public static StringMatcher Instance { get; internal set; }
 
+        private static readonly char[] Separator = new[] { ' ' };
+
         [Obsolete("This method is obsolete and should not be used. Please use the static function StringMatcher.FuzzySearch")]
         public static int Score(string source, string target)
         {
@@ -104,7 +106,7 @@ namespace Wox.Infrastructure
             var fullStringToCompareWithoutCase = opt.IgnoreCase ? stringToCompare.ToUpper(CultureInfo.InvariantCulture) : stringToCompare;
             var queryWithoutCase = opt.IgnoreCase ? query.ToUpper(CultureInfo.InvariantCulture) : query;
 
-            var querySubstrings = queryWithoutCase.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+            var querySubstrings = queryWithoutCase.Split(Separator, StringSplitOptions.RemoveEmptyEntries);
             int currentQuerySubstringIndex = 0;
             var currentQuerySubstring = querySubstrings[currentQuerySubstringIndex];
             var currentQuerySubstringCharacterIndex = 0;

src/modules/launcher/Wox.Plugin/AllowedLanguage.cs

@@ -24,8 +24,10 @@ namespace Wox.Plugin
             ArgumentNullException.ThrowIfNull(language);
 
             // Using InvariantCulture since this is a command line arg
-            return language.ToUpper(CultureInfo.InvariantCulture) == CSharp.ToUpper(CultureInfo.InvariantCulture)
-                || language.ToUpper(CultureInfo.InvariantCulture) == Executable.ToUpper(CultureInfo.InvariantCulture);
+            var upperLanguage = language.ToUpper(CultureInfo.InvariantCulture);
+
+            return string.Equals(upperLanguage, CSharp.ToUpper(CultureInfo.InvariantCulture), StringComparison.Ordinal)
+                || string.Equals(upperLanguage, Executable.ToUpper(CultureInfo.InvariantCulture), StringComparison.Ordinal);
         }
     }
 }

src/modules/launcher/Wox.Plugin/Common/DefaultBrowserInfo.cs

@@ -85,7 +85,7 @@ namespace Wox.Plugin.Common
                     if (appName != null)
                     {
                         // Handle indirect strings:
-                        if (appName.StartsWith("@", StringComparison.Ordinal))
+                        if (appName.StartsWith('@'))
                         {
                             appName = GetIndirectString(appName);
                         }

src/modules/launcher/Wox.Plugin/Common/VirtualDesktop/VirtualDesktopHelper.cs

@@ -6,6 +6,7 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Runtime.InteropServices;
+using System.Text;
 using Common.UI;
 using Microsoft.Win32;
 using Wox.Plugin.Common.VirtualDesktop.Interop;
@@ -54,6 +55,8 @@ namespace Wox.Plugin.Common.VirtualDesktop.Helper
         /// </summary>
         private Guid _currentDesktop;
 
+        private static readonly CompositeFormat VirtualDesktopHelperDesktop = System.Text.CompositeFormat.Parse(Properties.Resources.VirtualDesktopHelper_Desktop);
+
         /// <summary>
         /// Initializes a new instance of the <see cref="VirtualDesktopHelper"/> class.
         /// </summary>
@@ -260,7 +263,7 @@ namespace Wox.Plugin.Common.VirtualDesktop.Helper
             }
 
             // If the desktop name was not changed by the user, it isn't saved to the registry. Then we need the default name for the desktop.
-            var defaultName = string.Format(System.Globalization.CultureInfo.InvariantCulture, Resources.VirtualDesktopHelper_Desktop, GetDesktopNumber(desktop));
+            var defaultName = string.Format(System.Globalization.CultureInfo.InvariantCulture, VirtualDesktopHelperDesktop, GetDesktopNumber(desktop));
 
             string registryPath = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\VirtualDesktops\\Desktops\\{" + desktop.ToString().ToUpper(System.Globalization.CultureInfo.InvariantCulture) + "}";
             using RegistryKey deskSubKey = Registry.CurrentUser.OpenSubKey(registryPath, false);

src/modules/peek/Peek.FilePreviewer/Models/PreviewSettings.cs

@@ -17,7 +17,7 @@ namespace Peek.FilePreviewer.Models
     {
         private const int MaxNumberOfRetry = 5;
 
-        private readonly ISettingsUtils _settingsUtils;
+        private readonly SettingsUtils _settingsUtils;
         private readonly IFileSystemWatcher _watcher;
         private readonly object _loadingSettingsLock = new();
 

src/modules/peek/Peek.UI/Services/UserSettings.cs

@@ -17,7 +17,7 @@ namespace Peek.UI
         private const string PeekModuleName = "Peek";
         private const int MaxNumberOfRetry = 5;
 
-        private readonly ISettingsUtils _settingsUtils;
+        private readonly SettingsUtils _settingsUtils;
         private readonly IFileSystemWatcher _watcher;
         private readonly object _loadingSettingsLock = new object();
 

src/modules/poweraccent/PowerAccent.Core/Languages.cs

@@ -93,9 +93,9 @@ namespace PowerAccent.Core
         // All
         private static string[] GetDefaultLetterKeyALL(LetterKey letter)
         {
-            if (!_allLanguagesCache.ContainsKey(letter))
+            if (!_allLanguagesCache.TryGetValue(letter, out string[] cachedValue))
             {
-                _allLanguagesCache[letter] = GetDefaultLetterKeyCA(letter)
+                cachedValue = GetDefaultLetterKeyCA(letter)
                 .Union(GetDefaultLetterKeyCUR(letter))
                 .Union(GetDefaultLetterKeyCY(letter))
                 .Union(GetDefaultLetterKeyCZ(letter))
@@ -129,9 +129,11 @@ namespace PowerAccent.Core
                 .Union(GetDefaultLetterKeyTK(letter))
                 .Union(GetDefaultLetterKeyAllLanguagesOnly(letter))
                 .ToArray();
+
+                _allLanguagesCache[letter] = cachedValue;
             }
 
-            return _allLanguagesCache[letter];
+            return cachedValue;
         }
 
         // Contains all characters that should be shown in all languages but currently don't belong to any of the single languages available for that letter.

src/modules/poweraccent/PowerAccent.Core/Services/SettingsService.cs

@@ -15,7 +15,7 @@ namespace PowerAccent.Core.Services;
 public class SettingsService
 {
     private const string PowerAccentModuleName = "QuickAccent";
-    private readonly ISettingsUtils _settingsUtils;
+    private readonly SettingsUtils _settingsUtils;
     private readonly IFileSystemWatcher _watcher;
     private readonly object _loadingSettingsLock = new object();
     private KeyboardListener _keyboardListener;
@@ -28,6 +28,11 @@ public class SettingsService
         _watcher = Helper.GetFileWatcher(PowerAccentModuleName, "settings.json", () => { ReadSettings(); });
     }
 
+    private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+    {
+        WriteIndented = true,
+    };
+
     private void ReadSettings()
     {
         // TODO this IO call should by Async, update GetFileWatcher helper to support async
@@ -40,10 +45,7 @@ public class SettingsService
                     {
                         Logger.LogInfo("QuickAccent settings.json was missing, creating a new one");
                         var defaultSettings = new PowerAccentSettings();
-                        var options = new JsonSerializerOptions
-                        {
-                            WriteIndented = true,
-                        };
+                        var options = _serializerOptions;
 
                         _settingsUtils.SaveSettings(JsonSerializer.Serialize(this, options), PowerAccentModuleName);
                     }

src/modules/poweraccent/PowerAccent.Core/Tools/CharactersUsageInfo.cs

@@ -34,16 +34,15 @@ namespace PowerAccent.Core.Tools
             return timestamp;
         }
 
-        [System.Diagnostics.CodeAnalysis.SuppressMessage("Performance", "CA1854:Prefer the 'IDictionary.TryGetValue(TKey, out TValue)' method", Justification = "False positive: https://github.com/dotnet/roslyn-analyzers/issues/6390")]
         public void IncrementUsageFrequency(string character)
         {
-            if (_characterUsageCounters.ContainsKey(character))
+            if (_characterUsageCounters.TryGetValue(character, out uint currentCount))
             {
-                _characterUsageCounters[character]++;
+                _characterUsageCounters[character] = currentCount + 1;
             }
             else
             {
-                _characterUsageCounters.Add(character, 1);
+                _characterUsageCounters[character] = 1;
             }
 
             _characterUsageTimestamp[character] = DateTimeOffset.Now.ToUnixTimeSeconds();

src/modules/previewpane/SvgPreviewHandler/Settings.cs

@@ -45,7 +45,7 @@ namespace SvgPreviewHandler
         {
             get
             {
-                if (Common.UI.ThemeManager.GetWindowsBaseColor().ToLowerInvariant() == "dark")
+                if (string.Equals(Common.UI.ThemeManager.GetWindowsBaseColor(), "dark", StringComparison.OrdinalIgnoreCase))
                 {
                     return Color.FromArgb(30, 30, 30); // #1e1e1e
                 }

src/modules/previewpane/SvgPreviewHandler/SvgHTMLPreviewGenerator.cs

@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
+using System.Text;
 using Settings.UI.Library.Enumerations;
 
 namespace SvgPreviewHandler
@@ -39,14 +40,17 @@ namespace SvgPreviewHandler
 
         private readonly Settings settings = new();
 
+        private static readonly CompositeFormat HtmlTemplateSolidColorCompositeFormat = System.Text.CompositeFormat.Parse(HtmlTemplateSolidColor);
+        private static readonly CompositeFormat HtmlTemplateCheckeredCompositeFormat = System.Text.CompositeFormat.Parse(HtmlTemplateCheckered);
+
         public string GeneratePreview(string svgData)
         {
             var colorMode = (SvgPreviewColorMode)settings.ColorMode;
             return colorMode switch
             {
-                SvgPreviewColorMode.SolidColor => string.Format(CultureInfo.InvariantCulture, HtmlTemplateSolidColor, ColorTranslator.ToHtml(settings.SolidColor), svgData),
-                SvgPreviewColorMode.Checkered => string.Format(CultureInfo.InvariantCulture, HtmlTemplateCheckered, GetConfiguredCheckeredShadeImage(), svgData),
-                SvgPreviewColorMode.Default or _ => string.Format(CultureInfo.InvariantCulture, HtmlTemplateSolidColor, ColorTranslator.ToHtml(settings.ThemeColor), svgData),
+                SvgPreviewColorMode.SolidColor => string.Format(CultureInfo.InvariantCulture, HtmlTemplateSolidColorCompositeFormat, ColorTranslator.ToHtml(settings.SolidColor), svgData),
+                SvgPreviewColorMode.Checkered => string.Format(CultureInfo.InvariantCulture, HtmlTemplateCheckeredCompositeFormat, GetConfiguredCheckeredShadeImage(), svgData),
+                SvgPreviewColorMode.Default or _ => string.Format(CultureInfo.InvariantCulture, HtmlTemplateSolidColorCompositeFormat, ColorTranslator.ToHtml(settings.ThemeColor), svgData),
             };
         }
 

src/modules/registrypreview/RegistryPreviewUI/MainWindow.Utilities.cs

@@ -249,7 +249,7 @@ namespace RegistryPreview
                     // do not track the result of this node, since it should have no children
                     AddTextToTree(registryLine, imageName);
                 }
-                else if (registryLine.StartsWith("[", StringComparison.InvariantCulture))
+                else if (registryLine.StartsWith('['))
                 {
                     string imageName = KEYIMAGE;
                     CheckKeyLineForBrackets(ref registryLine, ref imageName);
@@ -259,7 +259,7 @@ namespace RegistryPreview
 
                     treeViewNode = AddTextToTree(registryLine, imageName);
                 }
-                else if (registryLine.StartsWith("\"", StringComparison.InvariantCulture) && registryLine.EndsWith("=-", StringComparison.InvariantCulture))
+                else if (registryLine.StartsWith('"') && registryLine.EndsWith("=-", StringComparison.InvariantCulture))
                 {
                     // this line deletes this value so it gets special treatment for the UI
                     registryLine = registryLine.Replace("=-", string.Empty);
@@ -277,7 +277,7 @@ namespace RegistryPreview
                         StoreTheListValue((RegistryKey)treeViewNode.Content, registryValue);
                     }
                 }
-                else if (registryLine.StartsWith("\"", StringComparison.InvariantCulture))
+                else if (registryLine.StartsWith('"'))
                 {
                     // this is a named value
 
@@ -310,16 +310,16 @@ namespace RegistryPreview
                     registryValue = new RegistryValue(name, "REG_SZ", string.Empty);
 
                     // if the first character is a " then this is a string value, so find the last most " which will avoid comments
-                    if (value.StartsWith("\"", StringComparison.InvariantCulture))
+                    if (value.StartsWith('"'))
                     {
-                        int last = value.LastIndexOf("\"", StringComparison.InvariantCulture);
+                        int last = value.LastIndexOf('"');
                         if (last >= 0)
                         {
                             value = value.Substring(0, last + 1);
                         }
                     }
 
-                    if (value.StartsWith("\"", StringComparison.InvariantCulture) && value.EndsWith("\"", StringComparison.InvariantCulture))
+                    if (value.StartsWith('"') && value.EndsWith('"'))
                     {
                         value = StripFirstAndLast(value);
                     }
@@ -988,7 +988,7 @@ namespace RegistryPreview
             {
                 try
                 {
-                    TextReader reader = new StreamReader(storageFile);
+                    StreamReader reader = new StreamReader(storageFile);
                     fileContents = reader.ReadToEnd();
                     reader.Close();
                 }
@@ -1167,7 +1167,7 @@ namespace RegistryPreview
         private string ScanAndRemoveComments(string value)
         {
             // scan for comments and remove them
-            int indexOf = value.IndexOf(";", StringComparison.InvariantCulture);
+            int indexOf = value.IndexOf(';');
             if (indexOf > -1)
             {
                 // presume that there is nothing following the start of the comment

src/settings-ui/Settings.UI.Library/ColorPickerSettings.cs

@@ -26,13 +26,15 @@ namespace Microsoft.PowerToys.Settings.UI.Library
             Name = ModuleName;
         }
 
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+        };
+
         public virtual void Save(ISettingsUtils settingsUtils)
         {
             // Save settings to file
-            var options = new JsonSerializerOptions
-            {
-                WriteIndented = true,
-            };
+            var options = _serializerOptions;
 
             ArgumentNullException.ThrowIfNull(settingsUtils);
 

src/settings-ui/Settings.UI.Library/ColorPickerSettingsVersion1.cs

@@ -13,6 +13,11 @@ namespace Microsoft.PowerToys.Settings.UI.Library
     {
         public const string ModuleName = "ColorPicker";
 
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+        };
+
         [JsonPropertyName("properties")]
         public ColorPickerPropertiesVersion1 Properties { get; set; }
 
@@ -26,10 +31,7 @@ namespace Microsoft.PowerToys.Settings.UI.Library
         public virtual void Save(ISettingsUtils settingsUtils)
         {
             // Save settings to file
-            var options = new JsonSerializerOptions
-            {
-                WriteIndented = true,
-            };
+            var options = _serializerOptions;
 
             ArgumentNullException.ThrowIfNull(settingsUtils);
 

src/settings-ui/Settings.UI.Library/CustomAction/SendCustomAction.cs

@@ -2,6 +2,7 @@
 // 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.Collections.Concurrent;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 
@@ -9,6 +10,8 @@ namespace Microsoft.PowerToys.Settings.UI.Library.CustomAction
 {
     public class SendCustomAction
     {
+        private static readonly ConcurrentDictionary<string, JsonSerializerOptions> OptionsCache = new ConcurrentDictionary<string, JsonSerializerOptions>();
+
         private readonly string moduleName;
 
         public SendCustomAction(string moduleName)
@@ -21,7 +24,13 @@ namespace Microsoft.PowerToys.Settings.UI.Library.CustomAction
 
         public string ToJsonString()
         {
-            var jsonSerializerOptions = new JsonSerializerOptions
+            var jsonSerializerOptions = OptionsCache.GetOrAdd(moduleName, CreateOptionsForModuleName);
+            return JsonSerializer.Serialize(this, jsonSerializerOptions);
+        }
+
+        private JsonSerializerOptions CreateOptionsForModuleName(string moduleName)
+        {
+            return new JsonSerializerOptions
             {
                 PropertyNamingPolicy = new CustomNamePolicy((propertyName) =>
                 {
@@ -29,8 +38,6 @@ namespace Microsoft.PowerToys.Settings.UI.Library.CustomAction
                     return propertyName.Equals("ModuleAction", System.StringComparison.Ordinal) ? moduleName : propertyName;
                 }),
             };
-
-            return JsonSerializer.Serialize(this, jsonSerializerOptions);
         }
     }
 }

src/settings-ui/Settings.UI.Library/EnvironmentVariablesSettings.cs

@@ -13,6 +13,11 @@ namespace Microsoft.PowerToys.Settings.UI.Library
     {
         public const string ModuleName = "EnvironmentVariables";
 
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+        };
+
         [JsonPropertyName("properties")]
         public EnvironmentVariablesProperties Properties { get; set; }
 
@@ -26,10 +31,7 @@ namespace Microsoft.PowerToys.Settings.UI.Library
         public virtual void Save(ISettingsUtils settingsUtils)
         {
             // Save settings to file
-            var options = new JsonSerializerOptions
-            {
-                WriteIndented = true,
-            };
+            var options = _serializerOptions;
 
             ArgumentNullException.ThrowIfNull(settingsUtils);
 

src/settings-ui/Settings.UI.Library/HostsSettings.cs

@@ -14,6 +14,12 @@ namespace Microsoft.PowerToys.Settings.UI.Library
         public const string ModuleName = "Hosts";
 
         [JsonPropertyName("properties")]
+
+        private static readonly JsonSerializerOptions _serializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+        };
+
         public HostsProperties Properties { get; set; }
 
         public HostsSettings()
@@ -26,10 +32,7 @@ namespace Microsoft.PowerToys.Settings.UI.Library
         public virtual void Save(ISettingsUtils settingsUtils)
         {
             // Save settings to file
-            var options = new JsonSerializerOptions
-            {
-                WriteIndented = true,
-            };
+            var options = _serializerOptions;
 
             ArgumentNullException.ThrowIfNull(settingsUtils);