Yeah. I can see how that is confusing.
What I suppose I’m asking is for a way to differentiate between trans/non-binary and cis-gender avatars. I personally don’t know how they would or could go about it but I’m not employed with them. 
It just sucks that there is no difference between a trans M-F. The avatar still looks like a man just simply dressed in “women’s” clothing. To me at least, that isn’t showing that you respect the struggle of those who are Transgender. Of course, I can’t speak for them but anyone can see it looks a bit sloppy that F-M isn’t represented, or any other gender-fluid options.
EDIT
Yes! That would be extremely helpful!! There are people who are androgynous and are either feminine or more masculine in appearance, so having the same features would be an amazing step!! 