Q: Overflow menu with custom component instead of "the three dots"

I know how to create an overflow menu in the top bar using the showAsAction option as described here: https://wix.github.io/react-native-navigation/docs/stack#overflow-menu. But is it possible to use a custom component instead of the "three dots" icon? I have a custom component that displays the user's initials in a circle, and I want the overflow menu to appear when it is tapped. How can that be achieved? Any help would be much appreciated.

Your best option here is to show the custom component as a button and when it's clicked - create your own menu implementation and show it in an Overlay.