In 2.10, the inner eyes of Patra 2 and Patra 3 use CSet 8. However, they are using CSet 7 in the 2.5 betas. I forgot to mention this a while back, by the way...
Here's two images to prove the difference:
2.10:
2.5 Beta:
NOTE: The only way to change the Cset of the inner eyes is to change the CSet of the leader. In other words, the color of the inner eyes changes along with the leader's color, rather than the color of the outer eyes.