anchor.diff:    /// in the foreground inactive state.  Apps transition to this state when
     /// another activity is focused, such as a split-screen app, a phone call,
     /// a picture-in-picture app, a system dialog, or another window.
  -  /// 
  +  ///
     /// Apps in this state should assume that they may be [paused] at any time.
     inactive,
   
  
positive.code: 
    /// A window padding that has zeros for each edge.
    static const WindowPadding zero = const WindowPadding._(left: 0.0, top: 0.0, right: 0.0, bottom: 0.0);
  }
  
  /// An identifier used to select a user's language and formatting preferences,
  
negative.code: /// A representation of distances for each of the four edges of a rectangle,
  /// used to encode the view insets and padding that applications should place
  /// around their user interface, as exposed by [Window.viewInsets] and
  /// [Window.padding]. View insets and padding are preferably read via
  /// [MediaQuery.of].
  ///
  /// For a generic class that represents distances around a rectangle, see the
  