antialias: true,

      antialias: true, // both about the same FPS, i get around 30 fps on 1600 x 900
      transparent: true, // true -> better fps?? https://github.com/pixijs/pixi.js/issues/5580
      resolution: window.devicePixelRatio || 1, // lower -> more FPS but uglier
      // resolution: 0.5,
      autoDensity: true,
      powerPreference: "low-power", // the only valid one for webgl

      fontSize: 12,

      textFpsHud.text = this.fpsTracker.getFpsString() + " FPS\n" + this.fpsTracker.getUpsString() + " UPS";

      textFpsHud.text = this.fpsTracker.getFpsString() + " FPS\n" + this.fpsTracker.getUpsString() + " UPS\n" + 
      this.app.screen.width + "x" + this.app.screen.height;