在WPF中指定自定义Window的默认外观？

   <Setter Property="Background" Value="LightBlue"/>
   <Setter Property="BorderBrush" Value="Black"/>
   <Setter Property="BorderThickness" Value="1"/>
   <Setter Property="WindowStyle" Value="None"/>
   <Setter Property="ResizeMode" Value="CanResizeWithGrip"/>
   <Setter Property="Template">
       <Setter.Value>
           <ControlTemplate TargetType="{x:Type Window}">
                <Grid>
                   <Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
                        <AdornerDecorator>
                           <ContentPresenter/>
                        </AdornerDecorator>
                    </Border>
                    <DockPanel LastChildFill="False" HorizontalAlignment="Right" VerticalAlignment="Top">
                       <Button Content="_" DockPanel.Dock="Right" Width="30" Height="30" Margin="0,0,3,3" Command="{x:Static SystemCommands.CloseWindowCommand}"/>
                       <Button Content="□" DockPanel.Dock="Right" Width="30" Height="30" Margin="0,0,3,3" Command="{x:Static SystemCommands.MaximizeWindowCommand}"/>
                       <Button Content="■" DockPanel.Dock="Right" Width="30" Height="30" Margin="0,0,3,3" Command="{x:Static SystemCommands.MinimizeWindowCommand}"/>
                    </DockPanel>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Style="{StaticResource CustomWindowStyle}">
    <!-- Window content -->
</Window>