This is a "I CAN'T READ IT'S TOO SMALL" version, at 12 px:


It only have ASCII characters, and you will need font substitution a lot. On the left, it is the same tmux sesion with tewi, that is just as big, butt feels smaller.

11px (in fact 12, 11 does not include space between characters) is now perfectly legible for me. But as it gets more legible for the same size, it could be made even smaller, like 10 px ?