A Boolean value that indicates whether the tile content is fully opaque.
- iOS 7.0+
- macOS 10.9+
- tvOS 9.2+
If the tile content you provide can cover the entire drawing area with opaque content, set this property to
true. Doing so serves as a hint to the map view that it does not need to draw any additional content underneath your tiles. Set this property to
false if your tiles contain any transparency.
The default value for this property is