You laugh, you lose

It looks like someone used the thick circular pen option in filling up that "15 TICKETS LATER" box instead of simply using the paint bucket. He has really steady cursor control, though.

looks more like the rounded rectangle tool. some weird jpeg compression on the top edge seems to be screwing it up visually though.
 
looks more like the rounded rectangle tool. some weird jpeg compression on the top edge seems to be screwing it up visually though.

Doesn't seems like any jpg compression I've witnessed, although I'm not an expert in such matters. Still, the top bump is clearly fully rounded, which would not explain the rounded rectangle brush, as the latter would result in curvature only on the corners.
 
QodSH.jpg