RadialGradientBrush's Coolness

    Brush as its name indicates can be used to paint the texture and chrome of a specified ContentElement or UIElement, Avalon comes with tons of different Brushes, one of which called RadialGradientBrush is what I want to demonstrate in the following code:
  

using System;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;

namespace MoveTheGradientCenter
{
    public class MainWindow : Window
    {
        private RadialGradientBrush brush;

        [STAThread]
        public static void Main()
        {
            Application app = new Application();
            app.Run(new MainWindow());
        }

        public MainWindow()
        {
            Title = "Move The Gradient Center";
            brush = new RadialGradientBrush(Colors.White, Colors.Black);
            brush.RadiusX = brush.RadiusY = 0.1d;
            brush.SpreadMethod = GradientSpreadMethod.Reflect;
            this.Background = brush;
        }

        protected override void OnMouseMove(MouseEventArgs e)
        {
            Point mousePosition = e.GetPosition(this);
            mousePosition.X /= ActualWidth;
            mousePosition.Y /= ActualHeight;
            brush.Center = mousePosition;
        }
    }
}

With some lines of simple code, you can get the intoxicating look and feel of the window chrome:


    Move your mouse around to see the coolness in action:-)