It looks like you are using an ad blocker. That's okay. Who doesn't? But without advertising revenue, we can't keep making this site awesome. Click the link below for instructions on disabling adblock.
I think if you made it "Empty Shapes: On" it would be more intuitive, and in that case it would be B. then if you click it again it'd say Empty Shapes: Off and you know if you draw a shape it wont be empty... just an idea.
possibly. Its not finished yet. All it does right now is let you put some shapes and text on the screen. You can't erase anything and there isn't a brush tool either. At the end its gonna have separate layers, different brush styles, saving to different formats. It should be pretty cool.