Forum:File:Wiki-Preview.png?

On a few wikis I saw a file with the above name. Can you guys tell what it's for? 良牙 (talk ) 04:39, February 22, 2012 (UTC)
 * Can you give links to at least one of these wikis? I could just be that it is a common image name. I've never heard of it being part of standard MediaWiki wikis or any Wikia extensions I know of. Your best bet is Special:Contact/general. -- Fandyllic (talk &middot; contr) 22 Feb 2012 8:28 AM Pacific