diff --git a/.github/actions/spell-check/dictionary/microsoft.txt b/.github/actions/spell-check/dictionary/microsoft.txt
index 960efdbd7..5e5d2ee31 100644
--- a/.github/actions/spell-check/dictionary/microsoft.txt
+++ b/.github/actions/spell-check/dictionary/microsoft.txt
@@ -1,4 +1,5 @@
 ACLs
+backplating
 DACL
 DACLs
 LKG
diff --git a/src/cascadia/TerminalApp/App.cpp b/src/cascadia/TerminalApp/App.cpp
index 0c7ff464d..8e5022a69 100644
--- a/src/cascadia/TerminalApp/App.cpp
+++ b/src/cascadia/TerminalApp/App.cpp
@@ -26,6 +26,11 @@ namespace winrt::TerminalApp::implementation
         }
 
         Initialize();
+
+        // Disable XAML's automatic backplating of text when in High Contrast
+        // mode: we want full control of and responsibility for the foreground
+        // and background colors that we draw in XAML.
+        HighContrastAdjustment(::winrt::Windows::UI::Xaml::ApplicationHighContrastAdjustment::None);
     }
 
     AppLogic App::Logic()
diff --git a/src/cascadia/TerminalControl/SearchBoxControl.xaml b/src/cascadia/TerminalControl/SearchBoxControl.xaml
index 54a21fe30..f64ae36ff 100644
--- a/src/cascadia/TerminalControl/SearchBoxControl.xaml
+++ b/src/cascadia/TerminalControl/SearchBoxControl.xaml
@@ -36,7 +36,6 @@
                     <Style x:Key="SearchBoxBackground" TargetType="StackPanel">
                         <Setter Property="Background" Value="#333333" />
                     </Style>
-                    <Style x:Key="PathStyle" TargetType="PathIcon" />
                     <!-- TextBox colors !-->
                     <SolidColorBrush x:Key="TextControlBackground" Color="#333333"/>
                     <SolidColorBrush x:Key="TextBoxPlaceholderTextThemeBrush" Color="#B5B5B5"/>
@@ -94,7 +93,6 @@
                     <Style x:Key="SearchBoxBackground" TargetType="StackPanel">
                         <Setter Property="Background" Value="#CCCCCC" />
                     </Style>
-                    <Style x:Key="PathStyle" TargetType="PathIcon" />
                     <!-- TextBox colors !-->
                     <SolidColorBrush x:Key="TextControlBackground" Color="#CCCCCC"/>
                     <SolidColorBrush x:Key="TextBoxPlaceholderTextThemeBrush" Color="#636363"/>
@@ -144,14 +142,10 @@
                 <ResourceDictionary x:Key="HighContrast">
                     <Style x:Key="FontIconStyle" TargetType="FontIcon">
                         <Setter Property="FontSize" Value="12" />
-                        <Setter Property="Foreground" Value="{ThemeResource SystemColorWindowTextColor}" />
                     </Style>
                     <Style x:Key="SearchBoxBackground" TargetType="StackPanel">
                         <Setter Property="Background" Value="{ThemeResource SystemColorWindowColor}" />
                     </Style>
-                    <Style x:Key="PathStyle" TargetType="PathIcon">
-                        <Setter Property="Foreground" Value="{ThemeResource SystemColorWindowTextColor}" />
-                    </Style>
                 </ResourceDictionary>
             </ResourceDictionary.ThemeDictionaries>
         </ResourceDictionary>
@@ -188,8 +182,7 @@
         <ToggleButton x:Name="CaseSensitivityButton"
                       x:Uid="SearchBox_CaseSensitivity"
                       Style="{StaticResource ToggleButtonStyle}">
-            <PathIcon Data="M8.87305 10H7.60156L6.5625 7.25195H2.40625L1.42871 10H0.150391L3.91016 0.197266H5.09961L8.87305 10ZM6.18652 6.21973L4.64844 2.04297C4.59831 1.90625 4.54818 1.6875 4.49805 1.38672H4.4707C4.42513 1.66471 4.37272 1.88346 4.31348 2.04297L2.78906 6.21973H6.18652ZM15.1826 10H14.0615V8.90625H14.0342C13.5465 9.74479 12.8288 10.1641 11.8809 10.1641C11.1836 10.1641 10.6367 9.97949 10.2402 9.61035C9.84831 9.24121 9.65234 8.7513 9.65234 8.14062C9.65234 6.83268 10.4225 6.07161 11.9629 5.85742L14.0615 5.56348C14.0615 4.37402 13.5807 3.7793 12.6191 3.7793C11.776 3.7793 11.015 4.06641 10.3359 4.64062V3.49219C11.0241 3.05469 11.8171 2.83594 12.7148 2.83594C14.36 2.83594 15.1826 3.70638 15.1826 5.44727V10ZM14.0615 6.45898L12.373 6.69141C11.8535 6.76432 11.4616 6.89421 11.1973 7.08105C10.9329 7.26335 10.8008 7.58919 10.8008 8.05859C10.8008 8.40039 10.9215 8.68066 11.1631 8.89941C11.4092 9.11361 11.735 9.2207 12.1406 9.2207C12.6966 9.2207 13.1546 9.02702 13.5146 8.63965C13.8792 8.24772 14.0615 7.75326 14.0615 7.15625V6.45898Z"
-                      Style="{ThemeResource PathStyle}" />
+            <PathIcon Data="M8.87305 10H7.60156L6.5625 7.25195H2.40625L1.42871 10H0.150391L3.91016 0.197266H5.09961L8.87305 10ZM6.18652 6.21973L4.64844 2.04297C4.59831 1.90625 4.54818 1.6875 4.49805 1.38672H4.4707C4.42513 1.66471 4.37272 1.88346 4.31348 2.04297L2.78906 6.21973H6.18652ZM15.1826 10H14.0615V8.90625H14.0342C13.5465 9.74479 12.8288 10.1641 11.8809 10.1641C11.1836 10.1641 10.6367 9.97949 10.2402 9.61035C9.84831 9.24121 9.65234 8.7513 9.65234 8.14062C9.65234 6.83268 10.4225 6.07161 11.9629 5.85742L14.0615 5.56348C14.0615 4.37402 13.5807 3.7793 12.6191 3.7793C11.776 3.7793 11.015 4.06641 10.3359 4.64062V3.49219C11.0241 3.05469 11.8171 2.83594 12.7148 2.83594C14.36 2.83594 15.1826 3.70638 15.1826 5.44727V10ZM14.0615 6.45898L12.373 6.69141C11.8535 6.76432 11.4616 6.89421 11.1973 7.08105C10.9329 7.26335 10.8008 7.58919 10.8008 8.05859C10.8008 8.40039 10.9215 8.68066 11.1631 8.89941C11.4092 9.11361 11.735 9.2207 12.1406 9.2207C12.6966 9.2207 13.1546 9.02702 13.5146 8.63965C13.8792 8.24772 14.0615 7.75326 14.0615 7.15625V6.45898Z"/>
         </ToggleButton>
 
         <Button x:Name="CloseButton"