diff --git a/src/Avalonia.Themes.Default/TitleBar.xaml b/src/Avalonia.Themes.Default/TitleBar.xaml
index 4dba5b4ba4..7f8ed24076 100644
--- a/src/Avalonia.Themes.Default/TitleBar.xaml
+++ b/src/Avalonia.Themes.Default/TitleBar.xaml
@@ -5,7 +5,7 @@
     </Border>
   </Design.PreviewWith>
   <Style Selector="TitleBar">
-    <Setter Property="Foreground" Value="{DynamicResource SystemControlForegroundBaseHighBrush}"/>    
+    <Setter Property="Foreground" Value="{DynamicResource ThemeForegroundBrush}"/>    
     <Setter Property="VerticalAlignment" Value="Top" />
     <Setter Property="HorizontalAlignment" Value="Stretch" />
     <Setter Property="Background" Value="Transparent" />
@@ -23,7 +23,7 @@
   </Style>
 
   <Style Selector="TitleBar:fullscreen">
-    <Setter Property="Background" Value="{DynamicResource SystemAccentColor}" />
+    <Setter Property="Background" Value="{DynamicResource ThemeAccentColor}" />
   </Style>
 
   <Style Selector="TitleBar /template/ Border#PART_Background">
diff --git a/src/Avalonia.Themes.Default/Window.xaml b/src/Avalonia.Themes.Default/Window.xaml
index 1856eec206..7d74a7e6a0 100644
--- a/src/Avalonia.Themes.Default/Window.xaml
+++ b/src/Avalonia.Themes.Default/Window.xaml
@@ -1,9 +1,8 @@
 <Style xmlns="https://github.com/avaloniaui" Selector="Window">
-  <Setter Property="Background" Value="{DynamicResource SystemControlBackgroundAltHighBrush}"/>  
-  <Setter Property="TransparencyBackgroundFallback" Value="{DynamicResource SystemControlBackgroundAltHighBrush}" />
-  <Setter Property="Foreground" Value="{DynamicResource SystemControlForegroundBaseHighBrush}"/>
-  <Setter Property="FontSize" Value="{DynamicResource ContentControlFontSize}"/>  
-  <Setter Property="FontFamily" Value="{DynamicResource ContentControlThemeFontFamily}" />
+  <Setter Property="Background" Value="{DynamicResource ThemeBackgroundBrush}"/>  
+  <Setter Property="TransparencyBackgroundFallback" Value="{DynamicResource HighlightForegroundColor}" />
+  <Setter Property="Foreground" Value="{DynamicResource ThemeForegroundBrush}"/>
+  <Setter Property="FontSize" Value="{DynamicResource FontSizeSmall}"/>  
   <Setter Property="Template">
     <ControlTemplate>
       <Panel>