NavigationMapView should automatically switch to the night style when the Smart Invert Colors option is enabled in iOS 11, based on UIAccessibilityIsInvertColorsEnabled() or the [UIAccessibilityInvertColorsStatusDidChange](https://developer.apple.com/documentation/foundation/nsnotification.name/1615196-

Would it be possible to add in the ability to see the remaining credits on an account?

This would allow users to keep track of their remaining balance without having to re-log into the service every time they want to check.

Thanks!