I wonder how it works? [Not especially well. It adds lots of extraneous code and I can't get the ftp image uploader to work, grr.]

(The above picture is David painting last week, his first time to use a brush and not fingers or popsicle sticks.  Both C&D prefer the brush to any other method, so far.  Carmen likes to paint circles and “rame-bos” (little arcs, and sometimes arcs beneath the first, and she always calls the first arc red even if it isn’t), and David likes to paint circles and then gradually fill the entire page with paint.)