public RoundRects (Context context) : base (context) { mRect = new Rect (0, 0, 120, 120); int[] colors = { unchecked((int)0xFFFF0000), unchecked((int)0xFF00FF00), unchecked((int)0xFF0000FF) }; mDrawable = new GradientDrawable (GradientDrawable.Orientation.TL_BR, colors); mDrawable.setShape (GradientDrawable.RECTANGLE); mDrawable.setGradientRadius ((float)(Math.Sqrt (2) * 60)); }