WPF MetroWindow列表框删除焦点颜色

<Style TargetType="ListBox">
    <Setter Property="Background" Value="{DynamicResource WhiteBrush}" />
    <Setter Property="BorderBrush" Value="{DynamicResource GrayBrush}" />
    <Setter Property="BorderThickness" Value="1" />
    <Setter Property="Foreground" Value="{DynamicResource BlackBrush}" />
    <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto" />
    <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
    <Setter Property="ScrollViewer.CanContentScroll" Value="True" />
    <Setter Property="ScrollViewer.PanningMode" Value="Both" />
    <Setter Property="Stylus.IsFlicksEnabled" Value="False" />
    <Setter Property="VerticalContentAlignment" Value="Center" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="ListBox">
                <Border Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}">
                    <ScrollViewer Focusable="False"
                                  Padding="{TemplateBinding Padding}">
                        <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                    </ScrollViewer>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>