I’ve built a simple toggle for the header that switches between two themes on click.
In the theme component’s settings, you can define the two themes:
Both themes must have
Theme can be selected by usersenabled, and both themes must also have this theme component added.
The theme name is used in the toggle. I strongly recommend short names!
I have not yet added mobile support, so this only works on desktop for now
Inspired by @B-iggy’s Alien Night Theme & https://meta.discourse.org/t/theme-switcher-component/113460, and heavily borrowing from @sam’s https://meta.discourse.org/t/hamburger-theme-selector/61210