@leocg that's the point it would be great to have an ability to prevent browser to report dark mode to websites. So if i only need the browser's top bar with navigation and things being dark and not the content i could set it up. I mean it's not even so much dark mode i would like to see as just tunable top bar and controls in the theme.

@leocg In OperaGX i might have like a black colored theme for ui. But with just Opera when i set dark mode websites like youtube change to dark mode too

I think that the option to have separate themes for browser UI and content, like in websites would be really beneficial.
Before i always wanted this feature as i use 2 monitor setup and like the second monitor to have only dark windows shown so to not distract from the main content on the main screen. But i really don't like my content to be in dark mode (besides finding dark content confusing, high contrast really messes with my astigmatism). So i had this dilemma with dark\light modes.
But now I'm switching to the oled monitor and really like to do all that is possible to prevent burn in. I know i will almost always have a browser's top bar shown on the screen, and it better be dark. The option to have separate themes for ui and websides would help in this case too!