protocol CustomPlaygroundQuickLookable A type that explicitly supplies its own playground Quick Look. A Quick Look can be created for an instance of any type by using the PlaygroundQuickLook(reflecting:) initializer. If you are not satisfied with the representation supplied for your type by default, you can make it conform to the CustomPlaygroundQuickLookable protocol and provide a custom PlaygroundQuickLook instance. Inheritance View Protocol Hierarchy → Import import Swift Instance Variables var customPlaygroundQuickLook: PlaygroundQuickLook Required A custom playground Quick Look for this instance. If this type has value semantics, the PlaygroundQuickLook instance should be unaffected by subsequent mutations. Declaration var customPlaygroundQuickLook: PlaygroundQuickLook { get }