Ageninic refers to someone who is attracted to agender people. This attraction can be exclusive or not.
History
Ageninic appears to be coined on July 30, 2018, through an anonymous submission to the Tumblr blog beyond-mogai-pride-flags.[1]
Flags
The first flag was coined by beyond-mogai-pride-flags on July 30th, 2018. It has no confimed meaning.
The second was coined on November 20th, 2020 by a user going by Artemis. It was based on the original flag, with some extra colors. The dark grey represents agender individuals who are also gendervoid or present in a genderless manner, light grey represents agender individuals who are also connected to masculinity, light green represents agender individuals who are also connected to femininity, dark green represents agender individuals who are connected to multiple gender presentations, turqoise represents agender individuals who are connected to xenic presentation or xenogenders, black represents all other presentations, and the heart represents attraction.