Minimal drawing canvas with a twist on the basic flood-fill.

1. Draw outlines with the wax pencil.
2. Select a color, click and hold to create a growing pool of pigment.

Live Demo

Typescript watch files:

npx tsc -watch

Local host:

python3 -m http.server

Reload for changes.

• Track pencil pixels for fill-blocking (color comparison is flakey due to anti-aliasing)
• Fade color by maze distance, not as-the-crow-flies
• Mix colors by subtraction, not addition