https://www.codingfont.com/

https://github.com/RedHatOfficial/RedHatFont

As of Monterey 12.6 the system ncurses is 5.7.20081102:

ncurses5.4-config --version

And it does not have tmux in its database:

infocmp tmux

So using set -g default-terminal tmux does not work and breaks ZSH.