How to add an icon below the avatar, based on usergroup?

[Bellinis]

For my donator group I'd like to add an icon below their avatar. How can I do that?
Also for the member card.

Thanks!

 

[x4rl]

For my donator group I'd like to add an icon below their avatar. How can I do that?
Also for the member card.

Thanks!

Wrong from for a request

http://xenforo.com/community/threads/user-status-ribbons-based-on-usergroups.11602/
Just add it like this but ofc use your image not a css one.