Visual Studio 2012 Metro Styles for WPF

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="pack://application:,,,/Selen.Wpf.Core;component/Resources.xaml"/>
    </ResourceDictionary.MergedDictionaries>
    <Style x:Key="StandardGroupBox" TargetType="GroupBox">
        <Setter Property="Foreground" Value="{StaticResource Foreground}"/>
        <Setter Property="BorderBrush" Value="{StaticResource BackgroundNormal}"/>
        <Setter Property="BorderThickness" Value="2"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type GroupBox}">
                    <Grid SnapsToDevicePixels="true">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="20"/>
                            <RowDefinition Height="Auto"/>
                        </Grid.RowDefinitions>
                        <ContentPresenter ContentSource="Header" Margin="2"/>
                        <ContentPresenter Margin="{TemplateBinding Padding}" Grid.Row="1"/>
                        <Border SnapsToDevicePixels="True" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Grid.Row="1"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>