A simple full-screen drawing app for RPi touch screen?

[Hove]

I've done an "apt-cache search drawing" but the choice is too huge. What I'm after it a simple (even black and white), full screen drawing app. The screen will be on a horizontal moving platform controlled by 2 stepper motors and another Raspberry Pi; a stylus will be touching the screen, so as the display platform is moved, a picture is drawn on the screen.

As you might have guessed this is then only a step away from a 3D printer, or laser cutter.

Any preferred apps you can suggest?

TIA

[DougieLawson]

How about mtpaint?

Or if you can't find anything else there's always the GNU Image Manipulation Program (GIMP).

[Hove]

Thanks Dougie, I'll try them both out.