Why colorize terminal output when you can colorize on the reader?
Colorful text is a must, because we are visual creatures. We process shapes and colors way better than symbols. Confronted to a screen full of text, it is hard to make sense of it, without meaningful coloring. I even find pure text repulsive, I don’t want to look. Command like tools like ls, grep, git offer colorized output, in fact I’m only able to find them useful, when their output is colorful. Color demands attention and focuses it too.