skins gone from Preferences/Appearance
The Modern and Cologne Blue skins have been removed from mediawiki core: https://gerrit.wikimedia.org/r/#/c/118345/ and put into the repo at /mediawiki/skins: https://gerrit.wikimedia.org/r/#/c/119884/
However, doing this causes the choices for Modern and Cologne Blue to be removed from Preferences/Appearance. This was not intended, Modern and Cologne Blue should remain available as preferences. (See screen shot)
10:58 chrismcmahon: hi MatmaRex now that Modern and Cologne Blue skins are no longer in core, do you know if they are supposed to remain available as choices in the Preferences/Appearance settings?
10:59 MatmaRex: chrismcmahon: on Wikimedia wikis? yes, they should
10:59 MatmaRex: chrismcmahon: whoever merged the patches should ensure that the newly created external skins are enabled in WMF environment
10:59 MatmaRex: or whoever wrote the patches