C# Gradients

        void pbHeaderBar_Paint(object sender, PaintEventArgs e)
        {
            /*
            LinearGradientBrush gradientBrush =
                new LinearGradientBrush(new Point(0, 0), new Point(0, pbHeaderBar.Height), Color.Black, Color.Black);

            ColorBlend colorBlend = new ColorBlend();
            colorBlend.Positions = new float[] { 0, 1/3f, 2/3f, 1 };
            colorBlend.Colors = new Color[] { Color.Blue, Color.Green, Color.Red, Color.Blue };
            gradientBrush.InterpolationColors = colorBlend;

            e.Graphics.FillRectangle(gradientBrush, 0, 0, pbHeaderBar.Width, pbHeaderBar.Height);
            */

            /*
            Brush gradientBrush = new LinearGradientBrush(new Point(0, 0), new Point(0, pbHeaderBar.Height), Color.Black, Color.Blue);
            e.Graphics.FillRectangle(gradientBrush, 0, 0, pbHeaderBar.Width, pbHeaderBar.Height);
            */

            /*
            GraphicsPath gradientPath = new GraphicsPath();
            gradientPath.AddRectangle(new Rectangle(pbHeaderBar.Location, pbHeaderBar.Size));
            PathGradientBrush pathGradientBrush = new PathGradientBrush(gradientPath);
            pathGradientBrush.CenterColor = Color.Green;
            pathGradientBrush.SurroundColors = new[] { Color.Blue };
            e.Graphics.FillRectangle(pathGradientBrush, 0, 0, pbHeaderBar.Width, pbHeaderBar.Height);
            */
        }