- update pucks so I can use them for both selecting and mixing
- fix canvas background color (currently looks white, acts black?)
- fix flood fill (currently always black and not clean)
- keyboard shortcuts
	- important ones are temporary color picker and temporary mixxing
- investigate anti-aliasing solutions
- implement layers
	- add/remove layer
	- select active layer
	- move layer up/down
	- hide/show layer
	- merge layers
- implement selection
	- select rectangle -> replaces current tool set with
		- resizie selection
		- transform selection
		- move selection
		- copy selection?
		- delete selection
		- resize selection