Cmd+F5, "Invert colors" (smart invert)
This will turn everything into dark mode, except images and video. And you don't have to care if site has that line in CSS. Also, when you switch back - everything is in "light mode" again, including OS UI.
This will turn everything into dark mode, except images and video. And you don't have to care if site has that line in CSS. Also, when you switch back - everything is in "light mode" again, including OS UI.