/// <summary>
        /// Creates a full-screen CCLayer with a gradient between start and end in the direction of v. 
        /// </summary>
        public static CCLayerGradient Create(CCColor4B start, CCColor4B end, CCPoint v)
        {
            var pLayer = new CCLayerGradient();
            if (pLayer.InitWithColor(start, end, v))
            {
                return pLayer;
            }

            return null;
        }