Accessing more view controller and making changes

//Change the navigation bar color and set a background image
    self. tabBarController.moreNavigationController.navigationBar.tintColor = [UIColor colorWithRed:0.89 green:0.48 blue:0.27 alpha:0.1];
    [tabBarController.moreNavigationController.topViewController.view setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:kBackgroundImage]]];

//Access table view of more view controller and make changes

UITableView* moreView = ((UIViewController*)[tabBarController.moreNavigationController.viewControllers objectAtIndex:0]).view;
moreView.backgroundColor = [UIColor whiteColor];