I can tell you I've seen that Rommels colony in person & it is more yellow than any type of orange.
Another friend has the same acro & again it looks yellow on the coralite edges..............still a very nice acro. I believe all from the same colony. Also, that colony is gone.
Here is my orange version acro............orange coralites & red polyps.
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Here it is when smaller, you can see the orange a bit better with retracted polyps
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More light intensity also seems to show the orange better. Once this acro gets bigger it should be a beauty.