I like the "paper notebook" feel of the white background. It just does not feel right to me to "draw" on a black background. Maybe I'll add a "fill" option so that you can fill sketches with a black background color by default and then draw with a white pen color.

For rich text, I don't know.. Might be worth a shot, but rich text is the least-used feature of the three types for me right now...

Checklist nodes are already white-on-black, just like a normal treeview (it's a normal treeview, after all .

For sketches, the fullscreen mode now hides the scroll bars. I'm not sure if it's worth investing much time in fitting kinetic scrolling with the sketch widget. I'm doing most of my drawing in full-screen anyway.

I'll see if I can simply use the pannable area (kinetic scrolling) for the rich text mode (it might be problematic for selection and stuff). Again, rich text isn't that important for me, so it might just end up with the normal scrollbars for now

Checklists already have kinetic scrolling.