[K0SM0S]

Makes so much sense, indeed!

Mod+- might be zoom out though, depending on your underlying terminal app / OS. (e.g. on Linux, I use Meta++ and Meta+- to zoom the whole screen in accessibility mode, and Ctrl with the same keys changes the terminal font size)

I may have to find a way to change one of those because I like your idea very much.

FWIW, I'm always looking for the "perfect" keyboard-only shortcut layout. At one time using AutoHotKey on Windows (long time ago), I juggled with 5 levels of mods and had encoded pretty much all of math, greek, ASCII art and whatnot I could ever use. It was awesome. AHK is the one program I truly, dearly miss on Linux. (at least on KDE, and Gnome afaik, there's just no substitute for the breadth of features and behaviors of AHK).