Hi, Here's a simple demo using Linear gradients (Color Manipulation) in C#.NET Windows Forms. private int _rColor = 100; public int GenerateRGB( int cc) { int rt = 0; if (cc <= 255) { rt = Information.RGB(255, cc, 0); } else if (cc < 511) { rt = Information.RGB(255 - (cc - 255), 255, 0); } else if (cc < 766) { rt = Information.RGB(0, 255, cc - 511); } else if (cc < 1022) { rt = Information.RGB(0, 255 - (cc - 767), 255); } else if (cc < 1277) { rt = Information.RGB(0, 0, 255 - (cc - 1022)); } else { rt = Information.RGB(0, 0, 0); } return rt; } private void timer1_Tick( object sender, EventArgs e) { this .Refresh(); _rColor += 1; if (_rColor > 1500) { _rColor = 0; } } private void Form1_Paint( object sender, PaintEventArgs e) { Color color = new Color(); Random m_Rnd = new Random(); color = Color.FromArgb(255, m_Rnd.Next(0, 255), m_Rnd.Next(0, 255), m_Rnd.Next(0, 255)); using (LinearGradi...