Not even yellow. Monochrome. The characters shouldn't have any color specified. There's no need for a separate character for black A, yellow A, green A. Why sho

Not even yellow. Monochrome. The characters shouldn't have any color specified. There's no need for a separate character for black A, yellow A, green A. Why should there be any for emoji? All of them were originally monochrome. A separate markup language (e.g. CSS) could be used to assign them any color or style.