If you liked system 6 & 7, and fuzzy light grey modern macOS annoys you, try Preferences->Accessibility->Display, and turn on Increase Contrast. It took me just half an hour to not find it jarring and now I really dislike going back to the field-of-fog regular UI.
Here it is on Ventura.
That really puts a spotlight on just how horribly low-contrast Mac OS and iOS have become. Every drop of institutional knowledge from research at Apple in UI design seems to have been dragged off to a shed and shot by Joni Ive.
