html.skin-citizen-dark doesn't work for Auto mode

[RothwellWiki]

Describe the Bug

Objects I target with html.skin-citizen-dark don't change to their dark theme when on auto mode. Is this a bug or do I have to do add something like html.skin-citizen-auto to them too?

Steps to reproduce the behavior:

1. Go to 'https://www.rothwell-leeds.co.uk/wiki/Main_Page' in your browser/device's dark mode
2. Toggle from auto to dark
3. See difference

Expected Behavior

Objects with html.skin-citizen-dark should change when in auto.

System

• MediaWiki version: 1.41.0
• Server OS: Unknown (hosted by Miraheze).
• Installed extensions and versions: see Special:Version. Citizen 2.15.1 (dcd569f.) - although likely a much more recent version due to very slow updates to Special:Version.
• PHP version: 8.2.18 (fpm-fcgi)

[alistair3149]

Yes it is the intended behavior.
We refactored how theme classes are handled to align with the current standards in MediaWiki.
The skin-citizen-dark and the similar classes are getting deprecated and being replaced with the new skin-theme-clientpref- classes. You can see how they are being used on this page: https://www.mediawiki.org/wiki/Recommendations_for_night_mode_compatibility_on_Wikimedia_wikis