This has actually swamped my time over the past 3 weeks. The MyGUI library, written by me for <a href="//processing.org">processing</a> is finally coming together nicely.
This particular example is a brief application of a MyGUI Button and MyGUI Pin Slider. The button lets you randomise the scale and colour of the squares, and the slider effects how fast they are generated.
Together they add a level of control not available to people using processing in the past. It will certainly assist me developing new test programs as I only need a few lines of code to get a working button into my applet.