Hiya! I've been keeping up with this project since you released the original contraptions to the Bazaar, and I was so excited for layered drawing in Decker that I started to write my own wrapper to view and edit layers using the older patternshop module. That was a while ago, but I finished working on it today!
Thank you again for making Patternshop and the work you put into documenting it, It's made drawing in Decker much more fun for me. ^^ (On a side note - please let me know if you would prefer if I called it something else!)