How do I turn on color syntax highlighting in the macOS terminal app? When I use terminal it is monochrome, currently "Grass" yellow on green. I've tried several ssh clients: MacOS default terminal, Termius, and Core Shell. They all have the same result, no syntax highlighting.

Did I do something to turn it off? How can I turn it on?
Just have a look at this 
https://superuser.com/questions/400360/syntax-highlighting-in-terminal-mac-os-x post. In my view, it comes with a lot of useful hints.