<Window x:Class="WpfApplication1.SolidColorBrushExample" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="SolidColorBrush Example" Height="415" Width="270"> <Canvas Margin="5"> <StackPanel> <TextBlock Margin="0,0,0,5"> Predefined Brush in the Brushes class: </TextBlock> <Rectangle x:Name="rect1" Width="100" Height="30" Stroke="Blue" /> </StackPanel> </Canvas> </Window> //File:Window.xaml.cs using System; using System.Windows; using System.Windows.Controls; using System.Windows.Input; using System.Windows.Media; using System.Windows.Shapes; namespace WpfApplication1 { public partial class SolidColorBrushExample : Window { public SolidColorBrushExample() { InitializeComponent(); SolidColorBrush brush = new SolidColorBrush(); // Predefined brush in Brushes Class: brush = Brushes.Red; rect1.Fill = brush; } } }