because then your shell will be slower than a snail. for real though, after looking at your examples I feel that features like those would fall on your termina

because then your shell will be slower than a snail. for real though, after looking at your examples I feel that features like those would fall on your terminal emulator to bring to the table, not the shell itself. specifically, I don't want to imagine trying to connect to a headless server during some crisis over bad wifi and have the shell think it needs to send a bunch of graphics to me.