<ResourceDictionary  
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

   <Style TargetType="{x:Type StatusBar}">
        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
        <Setter Property="FontFamily" Value="{DynamicResource {x:Static SystemFonts.StatusFontFamilyKey}}"/>
        <Setter Property="FontSize" Value="{DynamicResource {x:Static SystemFonts.StatusFontSizeKey}}"/>
        <Setter Property="FontStyle" Value="{DynamicResource {x:Static SystemFonts.StatusFontStyleKey}}"/>
        <Setter Property="FontWeight" Value="{DynamicResource {x:Static SystemFonts.StatusFontWeightKey}}"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type StatusBar}">
                    <Border CornerRadius="0,0,6.5,5.5" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
                        <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>
