https://gerrit.wikimedia.org/r/#/c/25170/ is a MediaWiki change that's
under discussion right now; it would completely remove all core skins
other than Monobook, Modern, CologneBlue & Vector. I thought you might
be interested in reading or weighing in on this discussion. Anyone with
Developer Access can comment in Gerrit -- for an account, just ask at
https://www.mediawiki.org/wiki/Developer_access .
Some more resources to look at, linked in the Gerrit comments:
https://www.mediawiki.org/wiki/New_skins_system
https://en.wikipedia.org/wiki/Wikipedia:Database_reports/User_preferences#S…
https://www.mediawiki.org/wiki/User:Dantman/Skinning_system/Skin_examination
Sometimes we have to shed some backwards compatibility. And it sounds
like removing support for these particular skins will enable us to
innovate and move faster. But it's a good idea to publicize this sort
of thing so legacy skin users can say "I'll maintain the legacy support
because I love this skin so much!", or prepare to reskin, or find some
new third way. :-)
Also, thanks to MatmaRex who has taken this opportunity to refactor the
CologneBlue skin.
--
Sumana Harihareswara
Engineering Community Manager
Wikimedia Foundation