Yes, I understand that about the genetics... I'm thinking about an alternate universe or something where what we now call "normal" is actually an unusual mutation (in which case it actually would change other morphs if it were mixed in...) and a snake with no unusual color or pattern mutations looked like something else. Totally idle speculation, with no practical application at all. Sort of like wondering what colors would advertise that an animal is poisonous if blood were green and leaves were red. Useful only to sci-fi writers and the like.