Ah i'm so sorry I didn't mean that there actually was an error, it was a reference to a joke in one of the episodes in the series where the characters go see a play about themselves which got Zuko's scar wrong
www.youtube.com/watch?v=SSq31Z…Sorry for the confusion it was so beautifully drawn and captured the two sides of Zuko so well i thought you were a fan and would get the reference.