The inner vexillology nerd in me craved more interestingly shaped pride flags, so I made some!
I view gender as an liquid, as such its shape conforms to which container it is in. For some the container was simply misplaced in the wrong category, others change their container (once or sometimes more!), or disregard the container entirely!
So I felt a wave was a nice way to represent this fluid nature!
As "Transgender" is typically considered a umbrella term, I also included many other varients!