The ability to choose a channel emoji / emote

Almost every public server these days uses emojis in their channels to distinguish them easily, usually by adding some kind of Unicode symbol as a divider before finally typing in the channel's name.

Sadly, this can end up looking odd, given that emoji's are not uniform size and some take up more space than others, putting the rest of the channels out of line.

Server owners are also limited to very few emojis which actually show up with colour, as not all of them do.

I think it'd be fantastic if we could pick an emoji / server emotes (potential boost unlock?) to sit uniformly next to the icon which represents its type (voice, announcements, text, etc)

I have created a rough draft of what it could look like.