Vice presidential debate tonight

Was watching the vice presidential debate, and couldn't stop staring at the back of the stage where a mysterious black box hovered over the stage. I guess I've gotten to the point where any artificial, CGI-created, thing in TV or movies just really stands out (unless it's just done really well, then someone is paying the big bucks so no one knows the difference).

So, take a look:
What does it look like to you? For a while I thought maybe someone had written some racist slogan on the wall and no one had time to clean it off, so they just covered it up with a computer generated... black square. It turns out, based on this image from the heraldonline.com, that its some kind of a hole in the wall. All the conspiracy theories that were bubbling up, and it turns out, I'm guessing, to be a hole for cameras.