Click to stamp. The program will log where you click and with what costume. Then press space to clear the screen. Next just press enter and it will redraw what you stamped. Please wait 1 second after clicking the green flag to stamp. If you press "p" the sprite will be Pico, if you press "s" the sprite will be Scratch Cat. May be using this later for a 1s 1s game that will require lots of stamping and re-stamping.
I made everything.