anchor.diff:  // Actors
   part 'game/nodes/triangle_ship.dart';
   part 'game/nodes/dual_cell_ship.dart';
  +
  +// Nodes
   part 'game/nodes/zoom_group.dart';
  +part 'game/nodes/zone.dart';
  +part 'game/nodes/dual_range_zone.dart';
  +part 'game/nodes/single_range_zone.dart';
   
   // Geometry
   part 'game/geometry/point_color.dart';
  
positive.code:   // to transitioning to the main game scene.
    //---------------------------------------------------------------
    SplashScene splashScene = new SplashScene.withReplacementScene(gameScene);
    splashScene.pauseFor = 0.0;
    
    // Note: typically we push a boot scene for release.
    // A simple dummy scene to allow Ranger to complete boot sequence.
  
negative.code: import 'package:ranger/ranger.dart' as Ranger;
  import 'package:tweenengine/tweenengine.dart' as UTE;
  import 'package:vector_math/vector_math.dart';
  import 'package:event_bus/event_bus.dart';
  
  // Resources
  part 'resources/resources.dart';
  