code: function _createFPS(context) {
      
          // Render FPS in right-top
          var modifier = new Modifier({
              align: [1, 0],
              origin: [1, 0],
              size: [100, 50]
          });
          var surface = new Surface({
              content: 'fps',
              classes: ['fps']
          });
          context.add(modifier).add(surface);
          
          // Update every 5 ticks
          Timer.every(function () {
              surface.setContent(Math.round(Engine.getFPS()) + ' fps');
          }, 2);
      }
docs: Creates the FPS-indicator in the right-top corner.
  
  @method _createFPS
  @private