Modifying core is horrible… it’s extremely bad practice and causes trouble for you. That said, people still do it. Especially in contracted scenarios. There are also unfortunately issues with most methods of trying to manage a wiki with modifications that make it difficult to upgrade or restrict your ability to track the changes you make. […]
In my last MediaWiki skinning tutorial I detailed how to create a brand new custom skin for MediaWiki. Since then I’ve found that there are also a number of people who want to create a new skin that only contains css tweaks of one of the built-in core skins. Many people try to do this […]
This tutorial details the creation of a custom skin for MediaWiki. The skin is packaged up into a directory you can drop into a MediaWiki installation and require_once() to install just as any other extension.