We’re talking about a terminal colorization function though. Fragmentation of packages aside, are there any other languages that have terminal text colorization built into the standard library?
Okay? You gave one example, C#, and extrapolated that to every single serious programming language you've ever used. I just took a quick look and none of Java, ruby, python, and PHP has this functionality in its standard library. Also yes ANSI codes work but it's not easy to write or read, so that's what these libraries are for. I'm not a JS apologist but it seems inaccurate to imply that its need for a terminal colorization library is a unique deficiency of the language.