public static IEnumerator LoadSpriteFromUrl(string url, System.Action<Sprite> onComplete)

Summary:

• Loads an image from a remote URL and converts it into a Unity Sprite
• This method is a coroutine and must be started with StartCoroutine
• It performs basic validation on the url, converts common SVG path segments to PNG,
• Downloads the texture via UnityWebRequest, and invokes onComplete with the created sprite (or null on failure).

IEnumerator LoadAvitarAsSprite()
{
    yield return LivelyWebGL.ExternalAssets.LoadSpriteFromUrl(avatarURL, (sprite) =>
    {
        if (sprite != null)
        {
            Debug.Log("Do something with sprite");
        }
    });
}