public static ColorRGBA GetRandomPastelColor()
        {
            Random r = RandomManager.GetRandom();

            int[] colors = new int[3];

            colors[0] = 255;
            colors[1] = r.Next(120, 255);
            colors[2] = r.Next(120, 190);

            Utils.Shuffle(colors);

            return(new ColorRGBA((byte)colors[0], (byte)colors[1], (byte)colors[2]));
        }
        public static void Shuffle <T>(T[] array)
        {
            var random = RandomManager.GetRandom();

            //http://www.dotnetperls.com/fisher-yates-shuffle
            for (int i = array.Length; i > 1; i--)
            {
                // Pick random element to swap.
                int j = random.Next(i); // 0 <= j <= i-1
                // Swap.
                T tmp = array[j];
                array[j]     = array[i - 1];
                array[i - 1] = tmp;
            }
        }