This is build on vanilla javascript. This can be used as a white or black or even a custom board for writing. Only your creativity will be its boundary, you can demostrate painting with it also. Though it might be hard for the absence of some features.
https://paint-suhrid.netlify.app/
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
Please make sure to update tests as appropriate.