Why do you want to differentiate? Isn't part of the point fungibility & privacy? Also giving me Ordinal Inscription heebie-jeebies if someone generates a "rare" cashu token
Discussion
Whenever you reissue a token, the image would change and be not reproducible. The only idea is to tell a payment from another, and so you can send them as images over instant messaging. They would be slightly more pallatable in your message feed as images than long strings of text