Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.
Page background black with black text, cannot read without highlighting.
For some reason, several different pages appear with black backgrounds and have black text. I tried disabling dark mode, but the issue persists. An example (YouTube Studio) is shown in attached images. I'm using it because it's a well known site, and hopefully, the way the page is made can explain why this doesn't happen on every site.
I don't have any add-ons that would change page appearance, and I tried with and without Firefox's built-in dark mode.