At first it might look like an overly basic drawing app on a web page. That is true for one part but the interesting part starts when you visit Colorillo while someone else is drawing on it. You will see right away what he or she is drawing and then you can collaborate on drawing something.
As with most of my projects, Nader has helped me with styling the page. This came actually pretty naturally, as the idea for the project came to me while I was visiting him in Berlin for a week of vacation in August.
Give it a try, you will be better able to grasp how fun Colorillo can be when you experience painting collaboratively.