Red icons in Xcode debugger

Question

I have been looking all over for an explanation on this and I can't find anything in Apple's docs or anywhere else.

In the debugging view in Xcode I see two red icons, one is a person (just like the blue ones) and the other is what looks like a car sounding it's horn next to the main app name.

I was wondering if anyone knew what they are, or what they mean, if I should be concerned about them, or can otherwise point me in a direction to learn more.