Assume that in a game there are two or more players whose nicknames are exactly the same, let's say "A". Suppose that cards playing by opponents are visible and someone played a spy card on one of players named A. Is there a way to find out which one was spied?

Related questions: if a map contains two territories of the same name and someone plays reconnaissance card, how can we find out which one they recon'ed? How about identically named bonuses and surveillance card?

For the reconnaissance & surveillance, I believe it zooms to the territory / bonus that it is. I have used this feature in very large maps to quickly find the correct territory.

For spy: no idea, it may be impossible to know without a name change.

You are correct, it pans to the territory that card was played on. I never realized that because I had auto-zooming disabled. Thanks.

Their colours

Oh wait. I didn't, read that it was the opponents card.
You can tell if one of them is on their team. But otherwise, I have no idea unless you ask