@freemo are those from a mastodon repo somewhere, or are they sourced from another library somewhere?
@worldsendless they dont come with mastodon, well not all of them. You import them one by one in the admin interface. You can do this either by uploading a png and giving it an id, or you can see a list of all the emoji "seen" from other servers and just click a button to bring it to this server.. again one by one.
It is all in the emoji icon. If you pause over an emoji, you can see the ascii needed to type it out.
@worldsendless Thats not a "character" in the unicode sense, that is an emoji. You can see all emoji by pressing the emoji icon in the text editor ont he web app.