He sounds genuinely cut up about there not being purple shirts available. "That does sound like it would be more convenient," Wash agrees. Colour-coding had definitely made keeping armour separate easier.

And then there's that name. Gamme. He tries to stay nonchalant. It's just a name after all. Maybe it's common here, although he doubts it. In which case... this is one of the AIs. Which one though? Probably not Sigma. From everything said, Sigma would probably recognise him.

The shirt that's held up is a pale blue. Chalky. And it... "Actually, that doesn't look too bad."