I drew this:
This tool will turn anyone into a pixel artist, but also help aspiring artists become much better at pixel art simply because it's immediate, simple, gorgeously designed, and the premise - tracing paper on anything, in pixel mode with snap to ratio of perfect pixels, is perfect.
Few wishes for the developer:
1. Please let the pipette color picker pick THROUGH the frame somehow. (significant productivity increase would have happened here, but I also like how it forced me to really work for the colors :))
2. If you could provide some kind of color mixer, between two sample colors, that would be awesome.
3. Would love to see palette support or swatches support of some kind - so we could use that palette to practice our artwork on different subject matter.
REALLY AWESOME, thanks!