I'm looking for a software I once stumbled over but forgot to bookmark:
I think it was an open source or freeware program. It could be used to generate colorful images by specifying some parameters and colors.
It could generate images that look similar to when you use your photo camera to snap pictures of lights in the dark but don't focus the lens - similar to this picture for example: http://www.freeimageslive.co.uk/free_stock_image/christmaslights0jpg
The program was available at least for Windows, but I think it was also for other systems.
Does that sound familiar to anyone? Please help.