Image support for Generic Pass in Apple Wallet

My company is planning to design a Generic Pass that our members can add to the Apple Wallet via a website (so not using PassKit). I see on the documentation that the layout for a Generic Pass needs to contain a Primary field and Thumbnail image (1:1 aspect ratio). I also see examples of Generic Passes that contain a strip image across the pass rather than a Thumbnail. Can anyone please clarify:

  • which of these images is supported
  • which fields are mandatory/optional for the pass
Image support for Generic Pass in Apple Wallet
 
 
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