Of all the new faces Connor has come to learn in the ARC, he is most uncertain of Matt.
Matt is Roman silver, a pale, matte silver colour that has no real shine, just a dull glow to it. When Connor sees him, all he can think of is a mirror that has no reflection, a sheet of steel, once polished, now completely fogged over. Revealing nothing. It's a baffling thing, one that he's never seen, and only by staring into the Roman silver for several minutes can he even begin to see a flicker of any other colour underneath it. Matt has every human emotion and reaction buried down so bloody deep it might very well take a spelunking expedition to find them again. For that, Connor knows that whoever he is, Matt Anderson is not what he says he is, because nobody keeps themselves so forcefully cut off from their own emotions.
But still, beneath it all, Matt is a good man, a trustworthy man. Because lying closest to the surface of the Roman silver, which is still deeply buried but not so deep as everything else, is a solid rosewood that echoes Becker's own colours, an unbendable loyalty to the team, with ripples of that same hunt-green protectiveness in it. There are none of the colours that Connor knows to avoid because they denote only bad things: ivy green, peacock blue, daisy yellow. No, Matt has good colours, solid, dependable colours that can be leant upon.
Still, that unreadable Roman silver worries him, and he often finds himself staring hard at it, trying to study that matte-gray surface and see what's underneath it. Abby asks him if he has some sort of man-crush on the Irishman, he stares at him so often and so studiously. Connor always laughs and brushes it off, but he knows that Matt is hiding something, and he is damn determined to figure out just what that is.
Slowly but surely, though, as the months go on, that Roman silver begins to lose some of that unreadable fogged-over nature. His colours begin to inch their way towards the surface, but rising slowly, like they were trying to pull themselves through cold molasses. Others in the ARC liked to tease Matt about his never making an expression, wondering if he was actually a person or an android; Connor knows better. He gets more adept at reading the unreadable Matt, and he comes to like this strange Irishman that is their leader. But he's still determined to find out just what that Roman silver is hiding.
Connor is nothing if not persistent.