Well, I added josep_ssv’s color tweening system. I modified it a bit, but it should work fine.
Color Tweening 22 July 2008
related
Ajax Animator
create and share animations in the browser

scratchpad
simple cross browser scratchpad used by Khan Academy

stick2
a simple skeleton based stop-motion stick figure animator

jsgif
a port of AS3GIF to generate animated gifs entirely in the browser

jsvectoreditor
cross browser vector graphics editor powered by RaphaelJS

forkswif
a simple prototype of an swf authoring tool in C# based on swfmill and svgpaint
