It also looks like the outline of knuckles of a fist on the bottom left. It always concerns me when a leader (esp. one with an ego like Obama’s) starts making everything look like it’s HIS. Freakin’ propaganda pushing scum, IMHO.
I saw a bit of the fist in there, too. That’s a big Marxist/black power symbol, and I think Obama does try to evoke it whenever he can.