Paint with system brushes and colors.

   
      

<Window  
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class="SystemColorsAndBrushes_markup.Window1"
    Title="System Colors" >
   <Window.Resources>
    <Style TargetType="{x:Type Rectangle}">
      <Setter Property="Margin" Value="10,0,10,0"/>
      <Setter Property="HorizontalAlignment" Value="Left"/>
      <Setter Property="Height" Value="20"/>
      <Setter Property="Width" Value="120"/>
      <Setter Property="Stroke" Value="Black"/>
      <Setter Property="StrokeThickness" Value="1"/>
    </Style>
    <Style TargetType="{x:Type TextBlock}">
      <Setter Property="Margin" Value="10,20,10,0"/>
    </Style>
    <Style TargetType="{x:Type Button}">
      <Setter Property="Margin" Value="10,0,10,0"/>
      <Setter Property="HorizontalAlignment" Value="Left"/>
    </Style>
    </Window.Resources>
    <StackPanel Background="White">
        <TextBlock>ActiveBorder</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ActiveBorderBrush}" />
        
        <TextBlock>ActiveCaption</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ActiveCaptionBrush}" />
        
        <TextBlock>ActiveCaptionText</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ActiveCaptionTextBrush}" />
        
        <TextBlock>AppWorkspace</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.AppWorkspaceBrush}" />
        
        <TextBlock>Control</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ControlBrush}" />
        
        <TextBlock>ControlDark</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ControlDarkBrush}" />
        
        <TextBlock>ControlDarkDark</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ControlDarkDarkBrush}" />
        
        <TextBlock>ControlLight</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ControlLightBrush}" />
        
        <TextBlock>ControlLightLight</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ControlLightLightBrush}" />
        
        <TextBlock>ControlText</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ControlTextBrush}" />
        
        <TextBlock>Desktop</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.DesktopBrush}" />
        
        <TextBlock>GradientActiveCaption</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.GradientActiveCaptionBrush}" />
        
        <TextBlock>GradientInactiveCaption</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.GradientInactiveCaptionBrush}" />
        
        <TextBlock>GrayText</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.GrayTextBrush}" />
        
        <TextBlock>Highlight</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.HighlightBrush}" />
        
        <TextBlock>HighlightText</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.HighlightTextBrush}" />
        
        <TextBlock>HotTrack</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.HotTrackBrush}" />
        
        <TextBlock>InactiveBorder</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.InactiveBorderBrush}" />
        
        <TextBlock>InactiveCaption</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.InactiveCaptionBrush}" />
        
        <TextBlock>InactiveCaptionText</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.InactiveCaptionTextBrush}" />
        
        <TextBlock>Info</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.InfoBrush}" />
        
        <TextBlock>InfoText</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.InfoTextBrush}" />
        
        <TextBlock>Menu</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.MenuBrush}" />
        
        <TextBlock>MenuBar</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.MenuBarBrush}" />
        
        <TextBlock>MenuHighlight</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.MenuHighlightBrush}" />
        
        <TextBlock>MenuText</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.MenuTextBrush}" />
        
        <TextBlock>ScrollBar</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.ScrollBarBrush}" />
        
        <TextBlock>Window</TextBlock>
        <Rectangle Fill="{x:Static SystemColors.WindowBrush}" />
        
        <TextBlock>WindowFrame</TextBlock>
        <Button Width="120" Height="20" Background="{x:Static SystemColors.WindowFrameBrush}" />
        
        <TextBlock>WindowText</TextBlock>
        <Button Width="120" Height="20" Background="{x:Static SystemColors.WindowTextBrush}" />
      </StackPanel> 

  
</Window>