This project has a picture in mind. Click space and the program will generate a mesh of triangles and fill each with a colour that best approximates that picture. Press h to hide variables. Change colour to shift palate. Press SPACE to redraw. You can increase "triangle size" for a more abstract looking picture, or reduce it for a more precise result. Press SPACE after changing to see the new pic. Press A to animate. This is slow unless (even when?) run on phosphorus: http://phosphorus.github.io/#48888522
Uses the faster triangle filler of @TheLogFather http://scratch.mit.edu/projects/24828481/