Why, after many years of existence, codeforces doesn't have dark mode? Whole my system in dark mode, but CF stands out and it's really painful for eyes.. Yes there are browser extensions like this or just dark mode for all websites. But first extension has an old, pixelized logo(and whole extension is bad designed), and the second one, obviously, can't change logo colors.. It would be really cool if there is an ability to change theme inside the site, in settings. And whole CF design should be updated imho.