title: How to change background color of page indicator in UIPageViewController
body: <p>I use a UIPageViewController in storyboard, and write a class inherit from UIPageViewController.</p>
  
  <p>After I finished code, I found the background color of page indicator is black, which I don't know how to change.</p>
  
  <p><a href="https://i.stack.imgur.com/L9nwA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/L9nwA.png" alt="enter image description here"></a></p>
  
  <p>I search the internet, and found many people will use UIViewController+UIPageControl to do custom page indicator.</p>
  
  <p>Is it possible to change the background color in UIPageViewController? </p>
  
  <p>Thanks!</p>