rainmeter-studio/RainmeterStudio.SkinDesigner/SkinDesignerControl.xaml

<Page x:Class="RainmeterStudio.SkinDesignerPlugin.SkinDesignerControl"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:r="clr-namespace:RainmeterStudio.SkinDesignerPlugin.Resources"
      mc:Ignorable="d" 
      d:DesignHeight="300" d:DesignWidth="500"
	Title="SkinDesignerControl">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="2*" />
            <ColumnDefinition Width="5" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>

        <Border Grid.Column="0">
            <Border.Background>
                <ImageBrush ImageSource="/Resources/Graphics/transparent_background.png"
                            Stretch="None" TileMode="Tile" />
            </Border.Background>
        </Border>

    </Grid>
</Page>