Press 1 for only triangles Press 2 for only Bezier curves Press 3 for both (default) Try https://sulfurous.aau.at/#267105584 if it's lagging
Cool little pen thing I varied the motions of each "connecting point" sprite, connected them using both triangles and Bezier curves, then reflected that about the x and y axes, for a nice symmetric look. I also made the design slowly "fade" rather than just clearing every so often. Credit to @thisandagain