title: Unable to set SKView backgroundColor
body: <p>I have an issue where my SKView's background color (grey) is briefly being displayed before the scene is presented.</p>
  
  <p>I manually attempted to set it, both via the Storyboard editor and in my controller (<code>self.skView.backgroundColor = [SKColor blueColor]</code>) but it remains grey. Is this not an attribute that can be overridden?</p>
  
  <p><strong>Update #1</strong></p>
  
  <p>Here's a little explanation as to what happening:</p>
  
  <ol>
  <li><code>viewDidLoad</code> is called and <code>skView</code> is presented on the screen w/ a grey background (<code>skView.scene</code> is not set yet).</li>
  <li>I load all of the game's assets (which takes ~1 second) and during this point the grey background is visible.</li>
  <li>After the assets have been loaded I load the scene and present it (the grey screen is replaced w/ the contents of the scene)</li>
  </ol>
  
  <p><strong>ViewController</strong></p>
  
  <pre><code>- (void)viewDidLoad
  {
      [self.activityIndicator startAnimating];
      [self authenticatePlayer];
  
      self.skView.backgroundColor = [SKColor blueColor];
  
      // During this time the grey screen is visible as the assets are being loaded and take ~1 second
      // self.skView.scene is NULL here so I cannot set the backgroundColor...
  
      [GamePlayScene loadSceneAssetsWithCompletionHandler:^{
          [self.activityIndicator stopAnimating];
          self.activityIndicator.hidden = YES;
  
          CGSize viewSize = self.skView.bounds.size;
  
          self.gamePlayScene = [[GamePlayScene alloc] initWithSize:viewSize];
          self.adView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
  
          [self.skView presentScene:self.gamePlayScene];
  
      }];
      ...
  </code></pre>