title: LibGDX Background Image in FitViewport
body: <p>So, I'm using LibGDX for my upcoming App.</p>
  
  <p>I use a FitViewport to ensure the 16:9 aspect ratio.
  So players with other aspect ratios than 16:9 will have black bars at sites.</p>
  
  <p><strong>What is the best way, to draw a screen filling background image, that also covers the area, where the black bars would be?</strong></p>
  
  <pre><code>    camera = new OrthographicCamera();
      viewport = new FitViewport(WIDTH, HEIGHT, camera);
      viewport.apply();
      camera.position.set(WIDTH / 2, HEIGHT / 2, 0);
      camera.update();
  </code></pre>
  
  <p>Thats how I set up my camera/viewport currently.</p>
  
  <p>I then draw stuff on it with a SpriteBatch.</p>
  
  <pre><code>Gdx.gl.glClearColor(1, 1, 1, 1);
  </code></pre>
  
  <p>That's how I currently at least change the color of the black bars, to any RGB color.</p>