Quoted from Nokoro:
I'm pretty sure the shield emblem is lit for galactic spinner. But the one to the left of it for the scoop is lit as well. Not sure if that was intentional. Perhaps not.
I will have to double check as I don't remember seeing the shield emblem lit. I rarely go for GAT because I think it's mostly dumb mode. For example, what is the point of giving up all your point making shots for 1 shot on the vengeance (Galactic Vengeance)? This is where GAT really falls flat on its face. You also lose 2x combo ability. I've seen people say some of the GAT modes are lucrative so it seems the scoring balance might be skewed across the modes. And then it's only for tier 1 missions. Boo!