<Window x:Class="WpfApplication1.LinearGradientBrushExample" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="LinearGradientBrush" Height="375" Width="300"> <StackPanel Grid.Column="0" Grid.Row="2"> <TextBlock Margin="5,10,5,0" Text="Vertical linear gradient" /> <TextBlock Margin="5,0,5,5" Text="- multiple colors" /> <Rectangle Width="100" Height="75" Stroke="Blue"> <Rectangle.Fill> <LinearGradientBrush StartPoint="0,0" EndPoint="1,0"> <GradientStop Color="Red" Offset="0.3" /> <GradientStop Color="Green" Offset="0.5" /> <GradientStop Color="Blue" Offset="0.8" /> </LinearGradientBrush> </Rectangle.Fill> </Rectangle> </StackPanel> </Window>