Question! It says in the FAQ that "OU, OC, CRAU, or other types of AUs are all allowed" for Original Universe characters - if I happen to, say, read/headcanon a character as transgender and there's absolutely no indication in canon of whether they're cis or trans, would I be required to mark them as an AU?

For example, this isn't who I'm apping, but if I wanted to play Auron from FFX as a trans man, I could make the argument that since none of the other characters in canon know the details of his upbringing or have seen him with his clothes off, there's nothing actually canon noncompliant about that and it wouldn't change what the other canon characters know to be true about him.

Of course the counterargument could be made that it was probably author intent for him to be a cis man, so I am okay if the ruling is that trans characters who aren't explicitly canonically trans have to be AUs, but I felt like I should ask.