Yeah the last CLI app I used was actually a TUI. It routed std out and std err from scripts and programs it'd call out to into separate windows. It had animations and effects and a help system built in. It also had theming support because the library I used for the TUI happened to have that and came with some default themes! It was a bit beyond a simple CLI tool.

If I'm farfing around with the console I'm going to have fun.