Can we also have a "Gen-X" mode, when I can use dark theme for UI and light theme for content? This boggles my mind that I can't have it in any OS or browser.

Can we also have a "Gen-X" mode, when I can use dark theme for UI and light theme for content? This boggles my mind that I can't have it in any OS or browser. The fact that I want muted-looking UX doesn't mean that I want the same for content. I can't read white-on-black text for longer than a minute.