Thanks DrPetter for creating such an elegant program. Its fun to use, clean and simple. My ideas. It would be nice to be able to reposition stuff I've already drawn, this would be handy to be able to adjust and make corrections. Maybe to reposition elements toggle a brush mode that you could first highlight an area (paint in bright colour, yellow for example) then use the space bar to move/rotate around but having an effect on the highlighted area only.
Also need some way to open/import a bitmap into a new layer.