Board Thread:Support Requests - Designing Your Wikia/@comment-25154254-20150315083408/@comment-11733175-20150316101945

Font files need to be uploaded like any other file before they can be used. However, this typically requires extra file extensions to be enabled by staff which has been refused lately due to copyright issues. If you do manage to get them uploaded, there are instructions at w:c:rs:MediaWiki:Common.css/Webfonts.css that should help you get everything set up.