Resources from markup
<Window x:Class="WpfApplication1.Window1" Title="Resources" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <Window.Resources> <SolidColorBrush x:Key="myBrush" Color="LightGreen" /> </Window.Resources> <Grid Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"> <TextBlock FontSize="36" Width="200" Height="200" Background="{StaticResource myBrush}">Hello!</TextBlock> </Grid> </Window>