Currently, there’s a client-side authorized extensions via accept=".png,.gif".
Editing accept=".png,.gif" in our browser allows uploads of other formats, including animated webp, which is nice since there support alpha transparency.
The authorized emojis extension can’t circumvent the authorized uploads extensions from the site settings (jpg, jpeg, png, gif, heic, heif, webp by default).
My suggestion is to expand the authorized formats in the emoji selector.
Would a PR be accepted?
What are the most compact extensions that Discourse supports?
As an update, other formats than gif and png aren’t on the roadmap right now.
I don’t think we want any other image formats here other than .png or .gif though, custom emojis are quite specific and we don’t want larger formats like tiff, heic etc.
It depends on the image. As a single example, depending on what an image contains, it can be larger in JPG than in PNG and vice-versa.
sadness, a webm and webp would be so revolutionary