Most of the alternatives diverged from the true fun of MSPaint that I had as a child. My children also seem to enjoy this. The closest existing project was "Drawing" on Linux, but I felt it couldn't decide if it was a vector or a raster editor, and this confused my kids, and made good fill pours difficult.

Features added beyond original Paint:

- Draw circles starting from the center.

- OKLCH Palette

- Visible pixel grid when zoomed in.

- Resizing canvas never destroys pixels.

- Builds on Linux and Windows.

- Written in rust.