[Ben]

Mike,

the reason for #3 is actually the zoom-in gesture, moving thumb and index towards each other. This evokes a black screen (Windows only).
The opposite gesture brings back the original screen, so that's fine. The black screen is just always a bit unexpected.
The 2 other points are still valid, too, both just in Windows as well.

Thanks
Ben

PS: thank you for 1.7.9 ☺