How to change the root view background in a managed expo app?

With the introduction of Page Sheets in iOS 13, there is a white background in my app that I cannot seem to be able to change (behind the white Page Sheet, and the grey top of the underlying page):

Obviously, for most apps a black background color would look much better.

While for ejected React Native apps, one could use:

https://github.com/johniak/react-native-root-view-background

I'm curious if anyone using managed Expo has figured out a way to deal with this. As I cannot find much complaints about this issue, other than:

https://github.com/expo/expo/issues/1563