The color to use for the table view’s index background area.
- iOS 6.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
Table views can display an index along the side of the view, making it easier for users to navigate the contents of the table quickly. This property specifies the color to display in the background of the index when the user drags a finger through it. A value of
nil represents the default color.