I've used pixijs.com in javascript, especially the drawing bits: https://pixijs.io/examples/#/graphics/simple.js https://pixijs.io/examples/#/graphics/simple.js

I've used pixijs.com in javascript, especially the drawing bits: https://pixijs.io/examples/#/graphics/simple.js https://pixijs.io/examples/#/graphics/simple.js You can export the drawn surface as an image. Not sure how if it will would work from a commandline program though.