I finally have a tutorial on MediaWiki Skinning for 1.18+ online on
Redwerks' Blog.
http://blog.redwerks.org/2012/02/08/mediawiki-skinning-tutorial/
The tutorial covers the general conceptual areas of a skin, laying out the
files for a skin, all the small boilerplate pieces used to output types of
content, an overview of things you should test for in your skin when
implemented, a bit on i18n and related info on variants and rtl, and a
touch on accessibility.
--
~Daniel Friesen (Dantman, Nadir-Seen-Fire) [
http://daniel.friesen.name]