public static string GetUriForEmoji(string glyphs)
        {
            var result = string.Empty;
            var i = 0;

            do
            {
                if (char.IsSurrogatePair(glyphs, i))
                {
                    result += char.ConvertToUtf32(glyphs, i).ToString("x2");
                    i += 2;
                }
                else
                {
                    result += ((short)glyphs[i]).ToString("x4");
                    i++;
                }

                if (i < glyphs.Length)
                    result += "-";

            } while (i < glyphs.Length);

            return $"ms-appx:///Assets/Emoji/Sprites/{result}.png";
        }