It's a great program for sketching and creating random abstract shapes. Of its many features I really like that it can save progress shots to a pdf at specified intervals (5 seconds, 30 seconds, 1 minute etc). Best of all, it's open source (of course!) and the pdf it creates is editable in Inkscape as vector shapes! Here's two of my pieces


One problem I've found is that when importing these images into inkscape it can slow it down quite a lot. The first image probably has about 1500 shapes in it. I've asked the developers for a way to impose a limit on the amount of shapes you can have in a drawing but so far no response. If anyone can code in java I'm sure you'd be a great help to many people!