anchor.diff:     * * webGL: use WebGL renderer?
      * * framerate: framerate of the game
      * * color: backgroundcolor of the stage
  +   * * fullScreen: stage gets full screen and keeps the aspect ratio
      * */
     Game({int width: 800, int height: 600, bool webGL: false, int frameRate:
         30, int color: StageXL.Color.Black, bool fullScreen: false}) {
  
positive.code:     resourceManager = new StageXL.ResourceManager();
      stateManager = new StateManager(this);
  
      stage.align = StageXL.StageAlign.TOP_LEFT;
      stage.scaleMode = StageXL.StageScaleMode.SHOW_ALL;
      renderLoop.addStage(stage);
  
  
negative.code:         ..height = height;
      document.body.children.add(canvas);
  
      if (fullScreen) {
        double scale = 1.0;
        double ratioWidth = (window.innerWidth) / width;
        double ratioHeight = (window.innerHeight) / height;
        scale = (ratioWidth < ratioHeight) ? ratioWidth : ratioHeight;
  
        canvas
  