luceos What I mean is something just like the "Customize CSS" feature, but instead of a window in the admin-side, make it a field where we can upload a .css file instead. Or maybe it pulls from a new folder/file, (/assets/custom/override.css), where we can work on CSS with more comfort than the clumsy override panel that exists. Flarum can then do whatever it wants with the override.css file, just like it does now with our raw CSS overrides. Same idea. The nice thing about this is it gives use the ability to use whatever editor we want for CSS overrides, and can easily see the override file in a GitHub repo, for example.
(I've mentioned it elsewhere, but I'm one of the few souls, apparently, that thinks CSS compilers are just a solution to no problem that ever existed. They just add a layer of complexity. Nothing wrong with regular CSS files.)
I don't know what @jordanjay29 is talking about, but it didn't have anything to do with my suggestion. Or at least I didn't write my suggestion knowing what Angular is. ?