And if it is, how would might I do it?
It’s certainly possible, in some cases. I’m not sure how to generalize this process, unfortunately
Hmm, that’s unfortunate. I suppose I could simply add a per domain hook (once I get around to working out how) for any website I visit frequently that annoys me.
Hopefully the following can be useful: Nyxt browser: dark-mode.org
It discusses per domain styling