Red button to make polygons go brrrr. But turn off transparent mode first... With some inspiration from @Hi_I_am_Alex , some of the underlying math has been improved from a regression model to a pure one. The result is geometrically perfect shapes and a massive efficiency boost to almost 10,000 polygons per second on a decent computer! unfortunately, the polygons deform when they get too close to the edge.
Want to fill rectangles instead? Check out this project https://scratch.mit.edu/projects/421030105/