My guess is that widespread 24-bit support in terminal apps is still held back by the fact that the macOS terminal still doesn't support it. As far as I can tell nearly everything else does :(
It seems possible to offer graceful degradation for non-supporting terminals, and I'd be surprised if the number of Terminal.app users that would even notice the difference would be that high:
Surely everybody who cares about a good terminal experience uses some third-party client already? Then again, maybe I'm underestimating managed/corporate devices that don't allow third-party terminal emulators, since they do have quite critical access in the end.
> Surely everybody who cares about a good terminal experience uses some third-party client already?
Unclear. The built-in Terminal app is pretty good otherwise, and true color isn't necessary for a lot (most?) of common terminal usage. It's not so poor that all command line users would definitely have a third party app.
IME, this is like the golden age of terminal apps in general and macOS-compatible ones in particular. There are several really good terminals for macOS:
