Unity Base64からTexture2Dへの変換

//testcode
const string s_Arrow0 = "iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAYdEVYdFNvZnR3YXJlAHBhaW50Lm5ldCA0LjAuNWWFMmUAAACYSURBVDhPzZExDoQwDATzE4oU4QXXcgUFj+YxtETwgpMwXuFcwMFSRMVKKwzZcWzhiMg91jtg34XIntkre5EaT7yjjhI9pOD5Mw5k2X/DdUwFr3cQ7Pu23E/BiwXyWSOxrNqx+ewnsayam5OLBtbOGPUM/r93YZL4/dhpR/amwByGFBz170gNChA6w5bQQMqramBTgJ+Z3A58WuWejPCaHQAAAABJRU5ErkJggg==";

        /// <summary>
        /// Converts a Base64 string to a Texture2D
        /// </summary>
        /// <param name="base64">Base64 string containing image data</param>
        /// <returns>Texture2D containing an image from the given Base64 string</returns>
        public static Texture2D Base64ToTexture(string base64)
        {
            Texture2D t = new Texture2D(1, 1);
            t.hideFlags = HideFlags.HideAndDontSave;
            t.LoadImage(System.Convert.FromBase64String(base64));
            return t;
        }