app/pb_kits/playbook/pb_dropdown/docs/_dropdown_with_custom_display

The customDisplay prop can be used to customize the display of the selected item by allowing devs to pass in a component that will be rendered to the left of the default text-based display. In this example the Avatar kit is being used.

The placeholder prop can also be used to customize the placeholder text for the default Trigger.

The onSelect prop is a function that gives the dev one argument: the selected option. In this example we are using the onSelect to set a state with the selected option and using it to customize the customDisplay.