The flag was created by FANDOM user RoseWatera on the 24th of December, 2020. The cyan stands for masculine genders, the ash cyan stands for non-conforming men, the light pink is for femininity and the hot pink is for non-conforming femininity.
The term Rosbian was coined for transmasculine individuals who express femininity for the reason of many of them getting discriminated against, fake-claimed, and are afraid of coming out as trans/coming to terms with their identity due to being too feminine. It was coined by FANDOM user RoseWatera on December 24th 2020. This page is the original source of the term.
The name of the identity was based on the term ‘rosboy’ which is a term/gender identity that involves being a boy and being feminine.