The various folders are Arduino sketches that work with the RGB LED Shield.
In order to build them, you need to unpack the TLC5490_r014_2.zip file from this repo into your Arduino libraries folder. Also, change the tlc_config.h file to list NUM_TLCS as 3 instead of 1 or you'll get a blue/green color splash.
That ZIP comes from http://code.google.com/p/tlc5940arduino/.
All source files are under the MIT License.
Board design files are under Creative Commons-SA 3.0 US license.