My initial experiment for the Adobe Design Center was not the feather piece, but a simple class that drew arcs dynamically in flash. I scrapped the project in favor of learning After Effects Expressions. After a few years in the back burner, I decided to finish what I started and created this experiment called arc.
View the arc experiment or view all the iterations here (One of the last things I added was a color wheel script I found on boostwoorthy’s site.).
Download source.