Blue behind driver after painting car

[88mphTim]

Recovering from illness, so decided to paint an ICR1 car because obviously I'm that weird. But confusingly the back of the cockpit, behind the drivers helmet, is blue... The blue doesn't show in the paint shop or decal shop. I figure I forgot to do something the right way?

Pic here if needed (I think I am using pavel's carset, copied the NH cars, made myself number 15)
Untitled-1.jpg

[CowtownBob]

My only experience with ICR1 was one play session at a friend's house back when it was new, so this is just my guess: It looks like it could be unpaintable panels. Does the paintkit let you paint the "underbody" colors - what you would see in your mirrors?