CinemaDrape receives the Software Informer Editor's Pick Award!
I can find no reason not to recommend CinemaDrape to anyone - having it installed on your computer won't harm its valuable resources and will offer you a quick and convenient solution to unwanted distractions.
CinemaDrape tested and reviewed in Germany by Freeware.de:
CinemaDrape provides a digital curtain for the screen. For users that want to hide potential distractions, CinemaDrape is the ideal tool.
CinemaDrape is in the Informatics Specialization Course of the Federal University of Minas Gerais, Brazil's largest federal university:
For people with low vision, CinemaDrape is a free software that helps find the window with the current focus on the screen by darkening all the others.

CinemaDrape recommended by Thomas Frank, founder of College Info Geek:
You don't need to do away with the nice desktop enhancements you have; just use an anti-distraction program like CinemaDrape. It blacks out everything on your screen except what lands inside an adjustable window.