Kit Kat (History, Marketing, Flavors & Commercials)
Kane writes about the history of KitKat, its marketing, flavors, and commercials of the company. There was a milk shortage during WW2, which prevented the use of milk chocolate from being suspended for a while. Thus, the creation of dark chocolate. Replacing the original red color of KitKat that presents milk chocolate and replacing it with blue packaging signifying the new dark chocolate.
Kit Kat Packaging History