Suggestion: Dark mode for the UI

[1Phase1]

Just a suggestion, not an issue or a bug: a dark mode UI option in the settings menu. The bright white UI is a little hard on the eyes. Thanks.

[Iridium-IO]

I've been avoiding this for months because I hate manually editing theme files (and default dark modes look insultingly bad).

But I've done all the hard work in this now so it should be easier to port over once I get around to it :)

[Tamarindo94]

This is a much needed feature!