The appearance settings to use when the edge of any scrollable content reaches the matching edge of the navigation bar.
- iOS 13.0+
- Mac Catalyst 13.0+
- tvOS 13.0+
When a navigation interface contains a scroll view, part of the scroll view's content appears underneath the navigation bar. When the edge of the scrolled content reaches that bar, UIKit applies the appearance settings in this property.
If the value of this property is
nil, UIKit uses a modified version of the settings found in the