<Window x:Class="Resources.WindowResource" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Resources" Height="300" Width="300" > <Window.Resources> <ImageBrush x:Key="TileBrush" TileMode="Tile" ViewportUnits="Absolute" Viewport="0 0 32 32" ImageSource="happyface.jpg" Opacity="0.3"></ImageBrush> </Window.Resources> <StackPanel Margin="5"> <Button Background="{StaticResource TileBrush}" Padding="5" FontWeight="Bold" FontSize="14" Margin="5" >A Tiled Button</Button> </StackPanel> </Window>