I'm of the opinion that most programs should get their config files explicitly from the command line. None of that ~/.apprc or $APP_PORT=8080. That's inconvenient for tools you use often, like ls or grep. If they read config files, an option like --ls-config would be very welcome.
Every new account/os installation, I have to hunt around to turn that off. I absolutely dislike colored output in almost all cases. Might be because I'm color-blind. But they keep moving those settings around. Perhaps that part is done in their spare time by the MS Office menu bar team.