Some people might identify as a Tribe, or Clan cat, like in the book series Warriors by Erin Hunter. This falls under Catgender and Fictigender.
Flag
The flag was created on January 11th, 2021. It represents the Catgender flag colours and the warrior cats Lionblaze and Cinderheart, but was previously believed to show Dustpelt and Ferncloud. Original art by OneDivineMisfit on DeviantArt.