this is still broken

src/modules/MouseUtils/FindMyMouse/FindMyMouse.cpp

@@ -714,16 +714,33 @@ private:
         m_backdrop.RelativeSizeAdjustment({ 1.0f, 1.0f }); // fill the parent
         m_backdrop.Brush(m_compositor.CreateColorBrush(m_backgroundColor));
         layer.Children().InsertAtTop(m_backdrop);
-
+        
         m_circleGeometry = m_compositor.CreateEllipseGeometry(); // radius set via expression animation
+        m_circleGeometry.Radius({ m_sonarRadiusFloat * m_sonarZoomFactor, m_sonarRadiusFloat * m_sonarZoomFactor });
+        
         m_circleShape = m_compositor.CreateSpriteShape(m_circleGeometry);
         m_circleShape.FillBrush(m_compositor.CreateColorBrush(m_spotlightColor));
         m_circleShape.Offset({ m_sonarRadiusFloat * m_sonarZoomFactor, m_sonarRadiusFloat * m_sonarZoomFactor });
+        
         m_spotlight = m_compositor.CreateShapeVisual();
         m_spotlight.Size({ m_sonarRadiusFloat * 2 * m_sonarZoomFactor, m_sonarRadiusFloat * 2 * m_sonarZoomFactor });
         m_spotlight.AnchorPoint({ 0.5f, 0.5f });
+        m_spotlight.Opacity(m_spotlightColor.A);
         m_spotlight.Shapes().Append(m_circleShape);
 
+        // auto maskBrush = m_compositor.CreateMaskBrush();
+        // maskBrush.Source(m_compositor.CreateColorBrush(winrt::Windows::UI::Colors::Black()));
+        // maskBrush.Mask(m_circleShape.FillBrush());
+        
+        // auto clipGeometry = m_compositor.CreateEllipseGeometry();
+        // clipGeometry.Center(m_circleShape.Offset());
+        // clipGeometry.Radius(m_spotlight.Size());
+        auto clip = m_compositor.CreateGeometricClip(m_circleGeometry);
+        // layer.Clip(clip);
+        m_backdrop.Clip(clip);
+
+        // m_backdrop.Brush(maskBrush);
+
         layer.Children().InsertAtTop(m_spotlight);
 
         // Implicitly animate the alpha.
@@ -816,6 +833,7 @@ public:
                     m_circleShape.FillBrush().as<winrt::CompositionColorBrush>().Color(m_spotlightColor);
                     m_circleShape.Offset({ m_sonarRadiusFloat * m_sonarZoomFactor, m_sonarRadiusFloat * m_sonarZoomFactor });
                     m_spotlight.Size({ m_sonarRadiusFloat * 2 * m_sonarZoomFactor, m_sonarRadiusFloat * 2 * m_sonarZoomFactor });
+                    m_spotlight.Opacity(m_spotlightColor.A);
                     m_animation.Duration(std::chrono::milliseconds{ m_fadeDuration });
                     m_circleGeometry.StopAnimation(L"Radius");
 

src/modules/MouseUtils/FindMyMouse/dllmain.cpp

@@ -279,14 +279,15 @@ void FindMyMouse::parse_settings(PowerToysSettings::PowerToyValues& settings)
             // Parse spotlight color
             auto jsonPropertiesObject = settingsObject.GetNamedObject(JSON_KEY_PROPERTIES).GetNamedObject(JSON_KEY_SPOTLIGHT_COLOR);
             auto spotlightColor = (std::wstring)jsonPropertiesObject.GetNamedString(JSON_KEY_VALUE);
-            uint8_t r, g, b;
-            if (!checkValidRGB(spotlightColor, &r, &g, &b))
+
+            uint8_t a, r, g, b;
+            if (!checkValidARGB(spotlightColor, &a, &r, &g, &b))
             {
                 Logger::error("Spotlight color RGB value is invalid. Will use default value");
             }
             else
             {
-                findMyMouseSettings.spotlightColor = winrt::Windows::UI::ColorHelper::FromArgb(255, r, g, b);
+                findMyMouseSettings.spotlightColor = winrt::Windows::UI::ColorHelper::FromArgb(a, r, g, b);
             }
         }
         catch (...)

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

@@ -62,7 +62,7 @@ namespace Microsoft.PowerToys.Settings.UI.Library
             ActivationShortcut = DefaultActivationShortcut;
             DoNotActivateOnGameMode = new BoolProperty(true);
             BackgroundColor = new StringProperty("#000000");
-            SpotlightColor = new StringProperty("#FFFFFF");
+            SpotlightColor = new StringProperty("#FFFFFFFF");
             OverlayOpacity = new IntProperty(50);
             SpotlightRadius = new IntProperty(100);
             AnimationDurationMs = new IntProperty(500);

src/settings-ui/Settings.UI/SettingsXAML/Views/MouseUtilsPage.xaml

@@ -114,7 +114,7 @@
                                 <controls:ColorPickerButton SelectedColor="{x:Bind Path=ViewModel.FindMyMouseBackgroundColor, Mode=TwoWay}" />
                             </tkcontrols:SettingsCard>
                             <tkcontrols:SettingsCard x:Uid="MouseUtils_FindMyMouse_SpotlightColor">
-                                <controls:ColorPickerButton SelectedColor="{x:Bind Path=ViewModel.FindMyMouseSpotlightColor, Mode=TwoWay}" />
+                                <controls:AlphaColorPickerButton SelectedColor="{x:Bind Path=ViewModel.FindMyMouseSpotlightColor, Mode=TwoWay}" />
                             </tkcontrols:SettingsCard>
                             <tkcontrols:SettingsCard x:Uid="MouseUtils_FindMyMouse_SpotlightRadius">
                                 <NumberBox

src/settings-ui/Settings.UI/ViewModels/MouseUtilsViewModel.cs

@@ -50,7 +50,7 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
             _findMyMouseBackgroundColor = !string.IsNullOrEmpty(backgroundColor) ? backgroundColor : "#000000";
 
             string spotlightColor = FindMyMouseSettingsConfig.Properties.SpotlightColor.Value;
-            _findMyMouseSpotlightColor = !string.IsNullOrEmpty(spotlightColor) ? spotlightColor : "#FFFFFF";
+            _findMyMouseSpotlightColor = !string.IsNullOrEmpty(spotlightColor) ? spotlightColor : "#FFFFFFFF";
 
             _findMyMouseOverlayOpacity = FindMyMouseSettingsConfig.Properties.OverlayOpacity.Value;
             _findMyMouseSpotlightRadius = FindMyMouseSettingsConfig.Properties.SpotlightRadius.Value;
@@ -278,7 +278,7 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
 
             set
             {
-                value = (value != null) ? SettingsUtilities.ToRGBHex(value) : "#FFFFFF";
+                value = (value != null) ? SettingsUtilities.ToARGBHex(value) : "#FFFFFFFF";
                 if (!value.Equals(_findMyMouseSpotlightColor, StringComparison.OrdinalIgnoreCase))
                 {
                     _findMyMouseSpotlightColor = value;