After a bit of playing about i have the original 2M particles running with inverted colors.  I wanted to do this and still retain the frame rate as the original version so it meant playing with GL_BLEND modes as i do some alpha work that makes things a little more challenging. The interface is hand recognition using Kinect on a Mac OSX 10.6.x and openFrameworks. Thanks to all in the openFrameworks community. Anyhow i liked the result and will now offer the user both version from a select menu. Hope you enjoy it..oh and the music it plays to (although for copyright reasons it’s not on the upload) is Bjork's Unravel, one day i dream she might see it and like it and then let me use Unravel.....