I believe Zig's new I/O is neither colored nor not colored, instead the design is orthogonal to that. You won't be able to make code magically async by just swa

I believe Zig's new I/O is neither colored nor not colored, instead the design is orthogonal to that. You won't be able to make code magically async by just swapping the implementation of Io, instead you'll need some kind of runtime that allows functions to wait without blocking OS threads. Depending on how this is implemented (if it's possible at all) you'll have colored functions or not.