> Maybe the Unicode consortium made a mistake by specifying them as bright yellow I don't think Unicode consortium initially specified any color for these char

> Maybe the Unicode consortium made a mistake by specifying them as bright yellow I don't think Unicode consortium initially specified any color for these characters. For instance U+1F604 is defined as "SMILING FACE WITH OPEN MOUTH AND SMILING EYES". I remember an early Android phone displaying these expressions on green robot faces. As far as I know color specifications only came later with the skin tone modifiers.