Arduino: RGB leds animation library

Hi everybody!
I've developed a a CSS3 inspired, keyframe based color animation library for controlling RGB leds with Arduino.
It basically allows you to program custom RGB light patterns by specifying a duration and what color to display in a specific percentage of that duration, without caring about transitions between the colors. I've put a small demo video here https://vimeo.com/79962595 and the library comes with quite a lot of examples.

I'd love to hear any suggestion and comments about it!
Didn't actually do it for christmas... but I guess it can come in handy these days :)

It's here on github https://github.com/fabricacode/arduinoLightAnimation