Display looks weird after exiting pcsx-rearmed

[pajordan]

(System Info: Retropie 4.5 from Pre made SD Image on RetroPie website running on Pi Zero W inside Retroflag GPi Case).

i use pcsx-rearmed for playstation emulation because it runs really well on the pi zero. (this great resource recommended it specifically for the GPi case.)

when i exit the emulator, the screen turns like game-boy green and the text looks really zoomed in, then it exits to emulationstation and everything looks fine. but when i launch another emulator, my runcommand splash screen looks like the green, zoomed-in screen as before. if i reboot everything goes back to normal. here are some pictures of the weird looking screen: https://imgur.com/a/eNG4ZHh

i'm using xboxdrv with a runcommand-onend.sh script that calls this quit.sh script when select+start is pressed while pcsx-rearmed is running: https://github.com/SinisterSpatula/Gpi3/blob/master/quit.sh
(the weird screen happens if i exit the emulator this way, or if i exit from within the emulator menu)

are there some extra lines i can add to this quit.sh script to readjust the screen settings on exit?

[pajordan]

after poking around a little more online i think what i want to do is set the console/terminal resolution and colors after exiting pcsx-rearmed to how they were before launching pcsx-rearmed.

these are the framebuffer lines in my /boot/config.txt:

framebuffer_width=320
framebuffer_height=240

(not sure how colors are set - i don't see any lines about that.)

but i don't think i can just add these lines to my quit.sh script mentioned in my original post, can i? because those aren't commands. (i just tried and it had no effect.)