Fixes color for AccentButtonBackgroundPressed in HC mode and sets Foreground for MouseOver trigger in AccentButtonStyle (#10655)

* Changing color of AccentButtonBackgroundPressed

* Sets foreground for MouseOver trigger in AccentButtonStyle

Author: siagupta0202

src/Microsoft.DotNet.Wpf/src/Themes/PresentationFramework.Fluent/Resources/Theme/HC.xaml

@@ -183,7 +183,7 @@
     <!--  Button  -->
     <SolidColorBrush x:Key="AccentButtonBackground" Color="{StaticResource SystemColorHighlightColor}" />
     <SolidColorBrush x:Key="AccentButtonBackgroundPointerOver" Color="{StaticResource SystemColorButtonTextColor}" />
-    <SolidColorBrush x:Key="AccentButtonBackgroundPressed" Color="{StaticResource SystemColorHighlightColor}" />
+    <SolidColorBrush x:Key="AccentButtonBackgroundPressed" Color="{StaticResource SystemColorButtonFaceColor}" />
     <SolidColorBrush x:Key="AccentButtonBackgroundDisabled" Color="{StaticResource SystemColorButtonFaceColor}" />
     <SolidColorBrush x:Key="AccentButtonForeground" Color="{StaticResource SystemColorHighlightTextColor}" />
     <SolidColorBrush x:Key="AccentButtonForegroundPointerOver" Color="{StaticResource SystemColorButtonFaceColor}" />

src/Microsoft.DotNet.Wpf/src/Themes/PresentationFramework.Fluent/Styles/Button.xaml

@@ -116,6 +116,7 @@
                         <Trigger Property="IsMouseOver" Value="True">
                             <Setter TargetName="ContentBorder" Property="Background" Value="{DynamicResource AccentButtonBackgroundPointerOver}" />
                             <Setter TargetName="ContentBorder" Property="BorderBrush" Value="{DynamicResource AccentButtonBorderBrushPointerOver}" />
+                            <Setter TargetName="ContentPresenter" Property="TextElement.Foreground" Value="{DynamicResource AccentButtonForegroundPointerOver}" />
                         </Trigger>
                         <Trigger Property="IsPressed" Value="True">
                             <Setter TargetName="ContentBorder" Property="Background" Value="{DynamicResource AccentButtonBackgroundPressed}" />

src/Microsoft.DotNet.Wpf/src/Themes/PresentationFramework.Fluent/Themes/Fluent.Dark.xaml

@@ -834,6 +834,7 @@
             <Trigger Property="IsMouseOver" Value="True">
               <Setter TargetName="ContentBorder" Property="Background" Value="{DynamicResource AccentButtonBackgroundPointerOver}" />
               <Setter TargetName="ContentBorder" Property="BorderBrush" Value="{DynamicResource AccentButtonBorderBrushPointerOver}" />
+              <Setter TargetName="ContentPresenter" Property="TextElement.Foreground" Value="{DynamicResource AccentButtonForegroundPointerOver}" />
             </Trigger>
             <Trigger Property="IsPressed" Value="True">
               <Setter TargetName="ContentBorder" Property="Background" Value="{DynamicResource AccentButtonBackgroundPressed}" />

src/Microsoft.DotNet.Wpf/src/Themes/PresentationFramework.Fluent/Themes/Fluent.HC.xaml

@@ -217,7 +217,7 @@
   <!--  Button  -->
   <SolidColorBrush x:Key="AccentButtonBackground" Color="{StaticResource SystemColorHighlightColor}" />
   <SolidColorBrush x:Key="AccentButtonBackgroundPointerOver" Color="{StaticResource SystemColorButtonTextColor}" />
-  <SolidColorBrush x:Key="AccentButtonBackgroundPressed" Color="{StaticResource SystemColorHighlightColor}" />
+  <SolidColorBrush x:Key="AccentButtonBackgroundPressed" Color="{StaticResource SystemColorButtonFaceColor}" />
   <SolidColorBrush x:Key="AccentButtonBackgroundDisabled" Color="{StaticResource SystemColorButtonFaceColor}" />
   <SolidColorBrush x:Key="AccentButtonForeground" Color="{StaticResource SystemColorHighlightTextColor}" />
   <SolidColorBrush x:Key="AccentButtonForegroundPointerOver" Color="{StaticResource SystemColorButtonFaceColor}" />
@@ -782,6 +782,7 @@
             <Trigger Property="IsMouseOver" Value="True">
               <Setter TargetName="ContentBorder" Property="Background" Value="{DynamicResource AccentButtonBackgroundPointerOver}" />
               <Setter TargetName="ContentBorder" Property="BorderBrush" Value="{DynamicResource AccentButtonBorderBrushPointerOver}" />
+              <Setter TargetName="ContentPresenter" Property="TextElement.Foreground" Value="{DynamicResource AccentButtonForegroundPointerOver}" />
             </Trigger>
             <Trigger Property="IsPressed" Value="True">
               <Setter TargetName="ContentBorder" Property="Background" Value="{DynamicResource AccentButtonBackgroundPressed}" />

src/Microsoft.DotNet.Wpf/src/Themes/PresentationFramework.Fluent/Themes/Fluent.Light.xaml

@@ -843,6 +843,7 @@
             <Trigger Property="IsMouseOver" Value="True">
               <Setter TargetName="ContentBorder" Property="Background" Value="{DynamicResource AccentButtonBackgroundPointerOver}" />
               <Setter TargetName="ContentBorder" Property="BorderBrush" Value="{DynamicResource AccentButtonBorderBrushPointerOver}" />
+              <Setter TargetName="ContentPresenter" Property="TextElement.Foreground" Value="{DynamicResource AccentButtonForegroundPointerOver}" />
             </Trigger>
             <Trigger Property="IsPressed" Value="True">
               <Setter TargetName="ContentBorder" Property="Background" Value="{DynamicResource AccentButtonBackgroundPressed}" />