anchor.diff:    ///
     /// This is unlikely to be a useful location for apps that lack a top [AppBar]
     /// or that use a [SliverAppBar] in the scaffold body itself.
  +  ///
  +  /// ![](https://flutter.github.io/assets-for-api-docs/assets/material/floating_action_button_location_mini_start_top.png)
     static const FloatingActionButtonLocation miniStartTop = _MiniStartTopFabLocation();
   
     /// Centered [FloatingActionButton], floating over the transition between
  
positive.code:   ///
    /// This is unlikely to be a useful location for apps that lack a top [AppBar]
    /// or that use a [SliverAppBar] in the scaffold body itself.
    static const FloatingActionButtonLocation centerTop = _CenterTopFabLocation();
  
    /// Centered [FloatingActionButton], floating over the transition between
  
negative.code:   /// To align a floating action button with [CircleAvatar]s in the
    /// [ListTile.leading] slots of [ListTile]s in a [ListView] in the [Scaffold.body],
    /// use [miniStartFloat] and set [FloatingActionButton.mini] to true.
    ///
    /// ![](https://flutter.github.io/assets-for-api-docs/assets/material/floating_action_button_location_start_float.png)
    static const FloatingActionButtonLocation startFloat = _StartFloatFabLocation();
  
    /// Start-aligned [FloatingActionButton], floating at the bottom of the screen,
  