Aromagender is an umbrella term for genders that are validated or closely related to scent, though one can also identify as aromagender itself. Most genders under this umbrella don't use the typical terms one would use to describe gender like masculinity, femininity, androgyny, etc. They instead describe gender through the smell of things.
The umbrella term was coined by wiki user PopkornHUPIK02 at March 19th, 2021. The flag was also made by the same user at the same day. This page is the original source of the term and flag.
The genders under the aromagender umbrella include-