Its actually the xenogender flag! You can tell because its only 5 colors, and doesnt really have a green. Also the artist confirmed in this post!
psst, u should also check out the other flags/identities there!!
From the nonbinary wiki:
"a nonbinary gender identity "that cannot be contained by human understandings of gender; more concerned with crafting other methods of gender categorization and hierarchy such as those relating to animals, plants, or other creatures/things."
I'm xenogender! So if u have any questions feel free to ask :]
