anchor.diff:    void init() {
       final mapOptions = new MapOptions()
         ..center = defaultPosition
  -      ..zoom = 2
  +      ..zoom = 3
         ..mapTypeId = MapTypeId.ROADMAP
         ..streetViewControl = false;
   
  
positive.code:   void show() {
      _map.style.display = null;
      event.trigger(_googleMap, 'resize', []);
    }
  
    @override
  
negative.code: class DartisansMap extends Object with Showable, ApplicationEventPassenger {
    final Logger log = new Logger('DartisansMap');
    final LatLngBounds defaultBounds = new LatLngBounds( new LatLng(-64.85571932665043, 169.94338350712894), new LatLng(74.18969003290712, -157.91062039912103)  );
    DivElement _map;
    GMap _googleMap;
    Dartisans _dartisans;
    List<Marker> _markers = new List<Marker>();
    bool hasBeenShown =false;
    
    DartisansMap(this._map) {
      this._map.style.visibility = null;
      init();
  