Note: you are viewing the development version of Schema.org. See How we work for more details.

mediaItemAppearance

A Schema.org Property

This term is proposed for full integration into Schema.org, pending implementation feedback and adoption from applications and websites.
In the context of a MediaReview, indicates specific media item(s) that are grouped using a MediaReviewItem.
Values expected to be one of these types
MediaObject
Used on these types
MediaReviewItem

Source

https://github.com/schemaorg/schemaorg/issues/2450