Here's a new feature that's been at the top of the list for a long time. And a big handful of other, important fixes I'm releasing this here in the Preview Center for now, and am hoping to release a final/public build in about 2 weeks.
New: The canvas may now be scrolled past the edge of the image (aka "overscroll")
New: When holding the spacebar, you may scroll using the keyboard arrow keys (in addition to click-and-drag panning). Holding Ctrl will scroll at 10x the rate.
Improved: The rate of auto-scrolling, which triggers when the mouse is at the canvas edge and a mouse button is being