anchor.diff:  /// is provided and [automaticallyImplyLeading] is true (true by default).
   ///
   /// The [largeTitle] widget will automatically be a title text from the current
  -/// route if none is provided and [automaticallyImplyTitle] is true (true by
  -/// default).
  +/// [CupertinoPageRoute] if none is provided and [automaticallyImplyTitle] is
  +/// true (true by default).
   ///
   /// When [transitionBetweenRoutes] is true, this navigation bar will transition
  -/// on top of the routes instead of inside it if the route being transitioned
  +/// on top of the routes instead of inside them if the route being transitioned
   /// to also has a [CupertinoNavigationBar] or a [CupertinoSliverNavigationBar]
   /// with [transitionBetweenRoutes] set to true. If [transitionBetweenRoutes] is
   /// true, none of the [Widget] parameters can contain any [GlobalKey]s in their
   /// subtrees since those widgets will exist in multiple places in the tree
   /// simultaneously.
  +///
  +/// By default, only one [CupertinoNavigationBar] or [CupertinoSliverNavigationBar]
  +/// should be present in each [PageRoute] to support the default transitions.
  +/// Use [transitionBetweenRoutes] or [heroTag] to customize the transition
  +/// behavior for multiple navigation bars per route.
   ///
   /// See also:
   ///
  
positive.code: /// default), it will produce a blurring effect to the content behind it.
  ///
  /// When [transitionBetweenRoutes] is true, this navigation bar will transition
  /// on top of the routes instead of inside it if the route being transitioned
  /// to also has a [CupertinoNavigationBar] or a [CupertinoSliverNavigationBar]
  /// with [transitionBetweenRoutes] set to true. If [transitionBetweenRoutes] is
  /// true, none of the [Widget] parameters can contain a key in its subtree since
  /// that widget will exist in multiple places in the tree simultaneously.
  ///
  /// See also:
  ///
  
negative.code: /// is provided and [automaticallyImplyLeading] is true (true by default).
  ///
  /// The [middle] widget will automatically be a title text from the current
  /// [CupertinoPageRoute] if none is provided and [automaticallyImplyMiddle] is
  /// true (true by default).
  ///
  /// It should be placed at top of the screen and automatically accounts for
  /// the OS's status bar.
  