/// <summary>
        /// Get the color of the shape path.
        /// </summary>
        /// <returns>The shape path color.</returns>
        /// <param name="ID">The ID of the shape.</param>
        /// <param name="from">From.</param>
        /// <param name="to">To.</param>
        public static Color GetShapePathColor(int ID, int from, int to)
        {
            Color  color = Color.white;
            string key   = GetPathStrKey(ID, from, to);

            if (PlayerPrefs.HasKey(key))
            {
                color = CommonUtil.StringRGBAToColor(PlayerPrefs.GetString(key));
            }
            return(color);
        }