Reactive Theming

[pgiacomo69]

I've implemented a listener with a builder that reacts to theme switching in Windows:
https://github.com/pgiacomo69/system_theme/tree/sysReactive
It still need some adjustments, but it works, also in fluent_ui example, with some changes.

[Feichtmeier]

It still need some adjustments, but it works, also in fluent_ui example, with some changes.

This sounds very nice, would this also work for macos? best regards

[bdlukaa]

@Feichtmeier Listening to changes is not available on macOS :/

@GroovinChip has tried to implement it in this gist, but no luck. I'd love a pull-request for the macOS implementation.