title: SwiftUI popover background color
body: <p>With UIKit, I could customize the background color of a popover using <code>UIPopoverPresentationController</code>'s <code>backgroundColor</code>.</p>
  
  <p>This would change the color including the arrow.</p>
  
  <p>How can I accomplish this with SwiftUI? When I change the the popover content's background color, it doesn't include the arrow:</p>
  
  <p><a href="https://i.stack.imgur.com/deoug.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/deoug.png" alt="Example of popover with different color arrow"></a></p>