A dictionary describing the data format for a preview-sized image accompanying the captured photo.
- iOS 11.0+
- Mac Catalyst 13.0+
See Video Settings Dictionaries for possible keys and values.
If you requested an embedded thumbnail image by specifying the
embedded property of your photo settings when requesting capture, this property's value is the resolved video settings dictionary for the embedded thumbnail image. If you did not request an embedded thumbnail image, this property's value is