> The closest thing to a specification for the PKPass format appears to be the Wallet Developer Guide, and whilst it doesn't explicitly state that the .png file

> The closest thing to a specification for the PKPass format appears to be the Wallet Developer Guide, and whilst it doesn't explicitly state that the .png files should actually be Portable Network Graphics images, that's presumably the intention. Lol, that got a chuckle out of me. Amazing write up by google project zero as always.