Don't think there was ever a setting for changing color and cursor shape native in macOS (though size and such is in Accessibility), but it's always been possib

Don't think there was ever a setting for changing color and cursor shape native in macOS (though size and such is in Accessibility), but it's always been possible by digging into the system a bit (just like all the icons are simply .icns bundles in /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/ and can be easily replaced to change the mediocre current icons with better ones). There have long since been many 3rd party utilities to make it easier/more automated, though some of them seem to have gotten abandoned. Here's an open source one called Mousecape if you're curious for example, but you have to fork it and remove the sparkle framework to make it work in 10.15: https://github.com/alexzielenski/Mousecape https://github.com/alexzielenski/Mousecape There's various commercial pointer modification utilities, as well as simpler highlighter-effect ones like Mouseposé and Pinpoint. Theming on macOS was a big awesome thing at one point, kind of too bad it seems to have fallen away a bit (in part because Apple's new security efforts have made it ever more work). At least it's still doable though.