Dark mode not working

I just checked it and darkmode works just fine. Can you share your Drupal version? Also can you try to reload on the login page? Does it pick up darkmode after a reload?

Running Drupal 10.0.8.

It turns out this may be browser dependent.

Works
Chrome (112.0.5615.137)
Firefox (112.0.2)

Doesn't work
Safari (16.4)
Brave (1.50.121)

Tested on macOS 13.3.1 (a)

I actually tested it as well on Ventura with Brave, Chrome, FF & Safari. All browser work for me.
Do you get any JS errors?

No JS errors in any of the browsers.

Very strange.

I can test later on another Mac.

I believe I may have uncovered the reason why I was seeing issues.

The Drupal.gin.darkmode key is being cached in local storage, and this doesn't seem to get updated if the setting is changed. Clearing the cache doesn't seem to affect this.

If I explicitly delete this key and refresh the page, it does get updated and everything works as expected (see screenshots).

Since this site is not yet live, I don't expect this to be a problem moving forward since all users would get the correct 'auto' key. However, I suppose this could affect sites which are already live and need to change the setting.

Anyways, the login page looks great so thanks for making this available.

Thanks @jabeler

Closing this as gin_login does not alter the state received from Gin but just uses the given state to display it. If there are other issues we might have to open an issue in the Gin issue queue to further investigate it 👀