<Window x:Class="Workspace.DockExample" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Workspace" Width="640" Height="480"> <Rectangle Width="100" Height="100" Stroke="Black" StrokeThickness="1" Margin="10,0,10,0"> <Rectangle.Fill> <DrawingBrush Viewport="0,0,0.5,0.5" TileMode="Tile"> <DrawingBrush.Transform> <SkewTransform AngleX="45" AngleY="0"/> </DrawingBrush.Transform> <DrawingBrush.Drawing> <DrawingGroup> <DrawingGroup.Children> <GeometryDrawing Geometry="M0,0.1 L0.1,0 1,0.9, 0.9,1z" Brush="Gray" /> <GeometryDrawing Geometry="M0.9,0 L1,0.1 0.1,1 0,0.9z" Brush="Red" /> </DrawingGroup.Children> </DrawingGroup> </DrawingBrush.Drawing> </DrawingBrush> </Rectangle.Fill> </Rectangle> </Window>