A few days after installing Ink Desktop I turned on my Tablet and the
Desktop had turned orange. The specification of desktop color in Display
Properties | Appearance | Advanced was still the intended color, and
fiddling there did not help. It may be related to Ink Desktop because
closing that utility restored the previous desktop shade (there was no image
on the desktop).

The orange color has come back once fleetingly on re-boot, but it had not
occurred for many reboots before the problem came up.

Anyone else seen this? The pen color I have for Ink Desktop is blue; it is
conceivable others might see the same phenomenon in a different shade
depending on the color they chose.