Quadgender

Quadgender is a non-binary gender identity in which someone has four distinct genders. They may feel like all of the four genders at the same time, or be fluid between them, in which case they may also identify as genderfluid. Quadgender people may have any combination of genders.

Flag
The quadgender flag contains seven stripes: One green stripe in the middle to represent androgynous genders, two yellow stripes on each side representing third genders, two blue stripes on each outer side representing masculine genders and finally two pink stripes on the very top and bottom representing feminine genders.

Resources

 * 1) https://www.deviantart.com/pride-flags/art/Quadgender-625327647