"not an expert in zig" but you can't even look at the documentation to find the `@tagName` builtin to do exactly the problem posed?: https://ziglang.org/documentation/0.16.0/#tagName

i can literally google "zig enum to string" and the first result is a reddit post where the given solution is `@tagName`. i'm ready to write this post off as a low-effort ad for C3

  std.debug.print("{any}\n", .{color});

Zig doesn't have attributes, but you could just create a thin wrapper struct over an inner type and use setter functions that throw errors on invalid values. Personally I prefer this over attributes because it forces you to handle possible error states from the callers of the setters, instead of relying on you remembering to call `validate` on your types.

There's a large black zig-zag blocking reading the text.