@MusikAnimal: I see you added this as a Gadget, is there a description page for this, any caveats/known issues/etc? Is this appropriate for all skins? — xaosflux ^Talk 01:54, 22 April 2021 (UTC)

@Xaosflux It's listed as a test gadget, and yes, there are issues! I wanted to make this easier for people to test without the "flashing" you must endure when using it as a user script. See my replies in the discussion. It should work in all skins, as the CSS revolves around inverting colors rather than overriding them. For now, the issue with Firefox appears to be the main problem and probably a blocker to promoting as a gadget unless we explicitly state Firefox isn't supported. — MusikAnimal ^talk 02:02, 22 April 2021 (UTC)

OK, I've linked it to this page at least for now, a gadget description/documentation page would be a better landing place though - prob should warn against Mozilla browsers in the description if it's a big problem too? — xaosflux ^Talk 02:04, 22 April 2021 (UTC)

There's actually User:Volker E. (WMF)/dark-mode so I've linked to that. I added a note about Firefox as recommended, but with the gadget listed under "Testing and development" I assume people won't expect it to be stable just yet. — MusikAnimal ^talk 02:17, 22 April 2021 (UTC)