@nileane @TangerineUI nope, it looks a bit broken. It's like it doesn't apply every rule (maybe some specifity issue?)
I know CSS so I can give it a try as well (though my instance is not on 4.3 yet)! I just didn't know if it was a "yeah it 100% won't work with that" situation or not.
@fantinel @TangerineUI oof, yeah something is definitely not right here. I don't know how Arc is injecting CSS.