Zero-width emojis that layer over the previous emoji

Problem

Maybe this is out of scope, it's definitely not high priority. But if there is demand for it, zero-width emojis the way 7tv does them may be a nice to have

Proposal

Zero-width emojis are emojis which will get visually layered on top of the preceding emoji. This allows for fun combinations of transparent zero-width emojis with a second emoji. For examples, check out these: https://7tv.app/emote-sets/643f3e4d400b6139d090899a