Option to always show scroll indicator on ScrollView
The ScrollView currently has a scrollbar (indicator) that only appears while scrolling. It then immediately fades out. In some cases it would be helpful to set this to always show.
In my case: this can help a user realize that an inset area allows vertical scrolling by having some visual indication of it.
A similar unanswered item on StackOverflow: https://stackoverflow.com/questions/33245589/react-native-scrollview-persistent-scrollbar