Thanks for the responses, guys. That's the info I was looking for. I should have been clear about the questions. I think a blue Performer is the coolest of the cools, but it looks like the only way you can get it (short of major mods) is with the gas ignition which I have zero interest in. And I wouldn't want the hole in the bowl, especially an oval one.
Yardburner, here is a pic of those triangular areas.