how exactly does colourized passwords make the GETPASS command harder?
Personally I think colourized passwords are more secure because it adds eve more to guess or crack. Afaik, applications like BruteForce don't take colour into consideration so using colour would likely fool it.
Also on clients like mIRC where you have to hold down the ctrl key while copying to capture the ctrl codes makes it harder to accidently reveal your password either in a logfile or a copy and paste to the wrong channel.