Yes it is a variegation visible on these leaves but I would say 5% , it is not an extended on as I already seen some plants with 50 to 70% leaves with the variegation variation. It will not harm your grow. Now as a personal reflection I always asked my self why no breeders had the idea to breed a plant that have the variegation gene ? I mean we have purple plants , leaves that are looking like duck foot , but nothing based on variegation :blush::+1: