<Rectangle xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" Margin="10">
		<Rectangle.Fill>
			<LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
				<GradientStop Color="Green" Offset="0.0" />
				<GradientStop Color="Red" Offset="0.5" />
				<GradientStop Color="Yellow" Offset="0.95" />
				<GradientStop Color="Blue" Offset="1.0" />
			</LinearGradientBrush>
		</Rectangle.Fill>
	</Rectangle>