The ideal presentation size of the item.
- iOS 11.0+
- macOS 10.10+
- Mac Catalyst 13.0+
When displaying the item, the value in this property represents the ideal size at which to display the item. The size in this property may differ from the size in the
source rectangle. For images, video, and other content with a natural size, the item automatically derives the size from that content. If the value in this property is
NSZero, use the size specified in the