Hey. It's nice and I'm going to poke at it to learn how to use the API. But those boxes... they just waste space. There was a (La)TeX package with accompanying documentation that showcased how useless for perception table borders are. Just separate the header with horizontal line and that's it. Look at some common Unix tools (top, free). No table boxes and it's damn clear what you're looking at. Just my 2c.
EDIT: I think this is related: https://tex.stackexchange.com/questions/238503/tip-on-how-to...
In terminal, even the horizontal rules are waste of space though.