This is a dumped copy of DanielX's Mario Paint composer. I wanted to make it available for personal use with minor modifications. This code is dumped from the electron app purchased from Steam.

There is a newer version available at https://github.com/STRd6/composer with an MIT license.

To do a test run of this, you can serve it with python:

python -m http.server 8080

And open your browser to http://localhost:8080.