don't want to get your hopes up yet but I am thinking about it! I am refactoring the code which should make additional tools/modes easier to handle.
what if I let the user upload several images, and tab between them on the crop tool? (or should each image just get cropped the same way?)
do you think just having one brightness slider would be enough or should each frame have its own setting?
now that I know about the multiple-animation-frames 'hack' this is quite an exciting prospect :)