This is cute. I like the happy art supplies and the pun subtitle is first rate. I think I hit some bugs though. It wasn't clear to me what the rules were for dragging the colors around. It seemed pretty random which ones I could move and which I couldn't. When I finally did manage to get a row lined up it vanished (expected) but then two of the other rows collapsed together so they were on top of each other. After I fussed with it a bit more the overlapping row disappeared and there was now a row floating well below the grid that appeared and disappeared as I moved colors around.