Yes, the first left one in a loop could be say green, and the very last one the same.
Then the second one could be blue, and its matching one blue, etc etc even if they are nested within other pairs.
At the moment we can only highlight one pair at a time, this way they could all show up at once, with their partner.
There could only be so many colours, but they can start repeating the sequence, I think it would be clear which is which partner.