[Bondi_Blue]

I don't entirely disagree, but I think it is worth noting that there was still quite a bit of playfulness in the UX even in the transition to O SX. There are tons of animation and icon secrets as detailed here: http://mewbies.com/easter_eggs_and_then_some.htm#macx Further, using traffic lights for window control icons, the magnification effect in the dock, inclusions of the genie and suck window minimize animations, the iTunes visualizer, (still present in Music.app) the cartoon "poof" animation whenever toolbar icons are dragged out and removed...these are all fun features and secrets that are new or at least persisted into the transition to OS X (not to mention the FreeBSD cal and emacs easter eggs). Some were lost when OS X 10.10 released, or when macOS 11 released, but now here with inclusions like Clarus, I think it is obvious that this culture of fun is not lost.