(Flag made by me, Yellows showing the "Amber" Park with the Circle showing A piece missing, showing a Lack of full Acceptance.)
Amberic is an umbrella Term, spanning from Genders to Sexualities. Amber is A Hidden Term for being part of the LGBTQ+, but not able to directly share it due to People they know following them or Parents checking their accounts.
This way, People can add "Amber" or "Amberic" to Their Bio to protect themselves from pushback or Jokes from Others they know IRL.
Amberic's flag exists to simply be able to add it to Lists of flags and better able to match with others, But the flag is not meant to be added to someone's Bio as A Flag makes people raise questions about it.
TL;DR
Amber (Or Amberic) is A Term meant to protect the Gender or Sexuality of Someone so people who are part of the LGBTQ+ community can See they are part of the same Community and make friends like that. It's not meant to be Shown as anything besides A Simple mention in A Bio to farther protect the same people who use it.