Yes I understand NB too (I used to be confused about that too, now I'm not), and agender of course, but yes there are so many labels. I knew butch lesbian meant masculine and then there's femme. But wouldn't saying transmasculine imply that the person is trans? So if an afab lesbian says they're transmasculine wouldn't it place them among trans people? And she wouldn't be lesbian but a straight trans man? Because a masculine lesbian is butch but still identifies as woman. Why say transmasculine then and not simply masculine or butch? Cause after all, as far as I know lesbians all identify as women. See this is where labels completely confuse me. Sometimes I think labels can make things easier but also harder.
I want my body completely male and my gender is completely male so it makes me binary, but sometimes I have slightly effeminate mannerisms so being read as male and having a male body would make me feel more comfortable with expressing my feminine side. I think we all have a feminine and masculine side and in most people one prevails over the other. It happens to cis and trans people. Everyone. And it has nothing to do with gender identity, just mannerisms/behavior. But for a trans man who is read as female by people he's not out to often avoids doing things that might be seen as feminine because well....it's obvious, he does not want others to interpret effeminate mannerisms as being a woman and this invalidates his real gender. I don't know if it makes sense but that's what happens to me.
I guess most cis people have stereotypes about us trans people. They expect a trans woman to be very girly and feminine and a trans man to be very manly and macho but it doesn't always work like that. And cis people are not all like that so I don't know why they expect us to be like that. I feel like small things that are ignored in cis people have a different social meaning in trans people where some cis people use them to invalidate our gender.
In the end I think each trans person is unique, binary or nb. I find nb people fascinating because it's like they break all the rules of gender, and because they prove that the world is not all black and white, but it has shades of gray. So gender identity, like physical sex, is not black and white, it only has black and white poles, the extremes (male and female) and nb people are the gray shades in between. That's how I interpret it and this image helped me better understand them

And agender people are out of the male/female spectrum so...a different color?

I find it easier to imagine things in colors/images/etc. instead of words and labels lol