-Choose your colours at the top or you can make custom colours -You can erase your drawings by clicking the icon at the top or by clicking the 'Erase All' button -You can adjust transparency and Thickness -To save: fullscreen->click win+prt sc sysrq (for windows only) -To open the file: file explorers>pictures>screenshots
This is the colourless version of my other project https://scratch.mit.edu/projects/505127261