When the skin tones were updated last year, there were problems at first and PleasantSims made a video about it. She mentioned that in a previous eye color update, genetics for one eye color could result in that color or one of the newer eye colors. For example, if you gave your sim purple eyes, their child could inherit the purple or the pink eye color (This explains why that was happening in my game). So each new eye color was attached genetically to one of the original eye colors. I wonder if that is the source of the confusion over where the green eye color came from.
