Render Icon depending on current state of picker

[indapublic]

Is your feature request related to a problem? Please describe.

I want to render different icons for closed and open picker. For example, V for closed state and ^ for open state.

Describe the solution you'd like

Replace Icon?: React.ReactNode; with Icon?: (props) => React.ReactNode;

Describe alternatives you've considered

Additional details

[saaspeter]

want it too, while this request is in 2021 :(