...es. The central circle is the core of the character, the stuff that should never be changed. And the further out you go, the more peripheral and open-to-change things become. To Fox, their assessment of Jonny was that race was peripheral to him - simply not an essential element of his character. So they viewed his race as fair game. I'm uncertain; it depends how it's handled. My instinct is that there'll be absolutely nothing about the Torch in this film that required him to be black or white or purple or green, and so the race-change will just be irrelevant.