Ah, I had just the same idea a couple of years ago and wrote a tiny little Classic app that cycles through exactly the same color pattern. Anyway, I have a dead pixel right in the middle of my screen! Boo-hoo. I actually thought there were more on the left half, but if this app works correctly, I was wrong.
Yes, useful app. Now I don't have to write it anymore.
An improvement would be if one could locate the dead pixels (if found) with the mouse, possibly by zooming in, and then produce a list of their X Y locations. But nobody really needs that, do they.
Are you serious about the "massaging the pixels" hint? Where'd you get that from?