Thread:Gamedezyner/@comment-4935956-20140618211440/@comment-4748628-20140618222300

Alright I've figured out what you would need. To change it wiki-wide you would add the following code (replacing %ICONURL% with a url to the icon you want to use) to the MediaWiki:Wikia.css page:

.User.chat-mod .username:after { background-image: url("%ICONURL%"); background-position: 0px; background-size: 16px; }