/V4/Quickstarts/EventAggregation/Desktop/Shell.xaml

<Window x:Class="EventAggregation.Shell"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    xmlns:cal="http://www.codeplex.com/CompositeWPF"

    Title="Shell" Width="640" Height="480">

    <Window.Background>

        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

            <GradientStop Color="#FFFFFFFF" Offset="0"/>

            <GradientStop Color="#FCFFF5" Offset="0.992"/>

            <GradientStop Color="#3E606F" Offset="0.185"/>

        </LinearGradientBrush>

    </Window.Background>

    <Grid>

        <Grid.RowDefinitions>

            <RowDefinition Height="50"/>

            <RowDefinition Height="*"/>

        </Grid.RowDefinitions>

        <Border Margin="10,5,10,10" Grid.Row="1" CornerRadius="4,4,4,4" BorderBrush="#193441" Background="#DDDCC5" BorderThickness="2,2,2,2">

            <Grid Width="Auto" Height="Auto" Margin="10,10,10,10">

                <Grid.ColumnDefinitions>

                    <ColumnDefinition Width=".3*"/>

                    <ColumnDefinition  Width=".7*"/>

                </Grid.ColumnDefinitions>

                <Border Grid.Column="0" CornerRadius="4,4,4,4" BorderBrush="#193441" Background="#FCFFF5" BorderThickness="2,2,2,2" Margin="5" Padding="5">

                    <ItemsControl cal:RegionManager.RegionName="LeftRegion"  />

                </Border>

                <Border Grid.Column="1" CornerRadius="4,4,4,4" BorderBrush="#193441" Background="#FCFFF5" BorderThickness="2,2,2,2" Margin="5" Padding="5">

                    <ItemsControl cal:RegionManager.RegionName="RightRegion" />

                </Border>

            </Grid>

        </Border>

        <StackPanel Orientation="Horizontal">

            <Label HorizontalAlignment="Left" Margin="10,0,0,0" Width="Auto" Content="Event Aggregation" FontWeight="Bold" Foreground="#FF373737" FontSize="24" FontFamily="Corbel"/>

            <Label HorizontalAlignment="Left" Width="Auto" Content="QuickStart" FontWeight="Normal" Foreground="#FF373737" FontSize="24" FontFamily="Corbel"/>

        </StackPanel>

        <Separator Margin="0,0,0,0" VerticalAlignment="Bottom" Height="10" BorderBrush="#193441"/>

    </Grid>

</Window>