It would be great if the scroll wheel would work in full screen mode even when the mouse arrow is not directly over the “paper” portion of the screen. I keep the paper and background color the same, and it’s nice to keep the mouse arrow away from the text.
I’m guessing this may be one of those things that sounds easy, but is a programming headache because it deals more with how the mac os interacts with the text area, but if it was an easy fix I’m all for it.
Hi,
You guessed right, I’m afraid. 
The trouble is that the scrolling is handled by the scroll view itself, and the scroll view only captures mouse scrolling when the mouse is within its bounds - it has no way of knowing about scrolls that are outside it. The black area to either side is another view; the only way would be to have the whole text view inside the larger black view, but that would mean the scroller moving to the edge of the screen and embedding another view along with the text view inside the scroll view… Uh, if any of that makes sense!
So, sorry, but this is a little more awkward from a programming point of view than it seems, even though it’s a good suggestion.
All the best,
Keith
You can work around this by setting the page width to 100% (within Full Screen) and then, in Scrivener preferences > Full Screen preferences, changing the margins to something large (to get the blank areas down the side).