I have an issue where my SKView's background color (grey) is briefly being displayed before the scene is presented.
I manually attempted to set it, both via the Storyboard editor and in my controller (self.skView.backgroundColor = [SKColor blueColor]) but it remains grey. Is this not an attribute that can be overridden?
Update #1
Here's a little explanation as to what happening:
viewDidLoadis called andskViewis presented on the screen w/ a grey background (skView.sceneis not set yet).- I load all of the game's assets (which takes ~1 second) and during this point the grey background is visible.
 - After the assets have been loaded I load the scene and present it (the grey screen is replaced w/ the contents of the scene)
 
ViewController
- (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];
    }];
    ...