Admin Forum:Incredible wiki customization. How to do such things?

Hi! I recently seeked some info in Avatar Wikia (http://avatar.wikia.com/wiki/Avatar_Wiki).

I saw that they have incredibly customised wikia- They have a popup windows with much information, something like "Create Protection" on their wiki and even their page editor looks different.

So my question is: How one can do such things and where to find tutorials on it? It jsut really interested me, as I just have never met such a thing, I didn't even know one can customise wikia so much...

Regards

''Look outside the box. What you see? ~Seraskus'' 20:36, February 12, 2012 (UTC)