There are some serious issue with the Inactive Windows feature and Unity3D, would be very very nice if you could investigate on it.
Especially 'cause Unity get constantly updated and adding everytime a bunch the application to exclude, other than be time consuming, often even didn't work at all.
Indeed the Unity screen get completely black when placed unfocused and then, there's no way to restore it, unless you close and re-open the application.
Indeed when I work I've to kill WIndowFX and that's pretty sad.
Why there's no animation a-la "old mackintosh" ?