anchor.diff:  TextureData _textureData;
   
   main() {
  -  _imageLoader = new ImageLoader([_transparentTextureName, _opaqueTextureName]);
  +  _imageLoader = new ImageLoader([_transparentTextureName, _opaqueTextureName,
  +                                  _transparentStaticTexture]);
     _imageLoader.loaded.add((args) => _doLoad());
     _imageLoader.load();
   }
  
positive.code: _doLoad() {
    final opaqueImage = _imageLoader.getResource(_opaqueTextureName);
    final transparentImage = _imageLoader.getResource(_transparentTextureName);
  
    final textures = _getTextures(transparentImage, opaqueImage);
    _textureData = new TextureData(textures);
  
    CanvasElement canvasElement = query('#textureCanvas');
  
negative.code: 
  #source('../texture_data.dart');
  
  const String _transparentTextureName = '../images/transparent_animated.png';
  const String _opaqueTextureName = '../images/dart_opaque_01.jpg';
  const String _transparentStaticTexture = '../images/transparent_static.png';
  
  ImageLoader _imageLoader;
  List<String> _keys;
  