Realistically, you wouldn't pay specific attention to any one shrouded person on a camera network, whether or not they had the same color shroud as another person you saw on your network. There's dozens of people moving around in shrouds at all time. I suppose a point can be made that not being able to see a shroud's color without 'look'ing makes it harder to keep track of shroud color, but you would very definitely see the color of the piece of clothing that someone is using to completely disguise their identity. What's more, it's probably the ONLY identifying thing you see, why would it not be immediately obvious, camera or in-person?