Now this is funny. In a .NET windows forms application, paste this code into one of your windows' code files: protected override void OnPaint(PaintEventArgs e) { base.OnPaint( e ); this.SpecialSecret( e.Graphics ); } public void SpecialSecret(Graphics g) { g.Clear(this.BackColor); int maxSize = 4; int maxFine = 1000; Brush b = new SolidBrush(Color.Green); for (double t=-Math.PI;t