Navigation Drawer Item Icon not showing Original Colour

Programmatically

yourNavigationView.setItemIconTintList(null);

From XML

<android.support.design.widget.NavigationView
    ...
    app:itemIconTint="@android:color/black" 
    ... />

References
https://stackoverflow.com/questions/31394265/navigation-drawer-item-icon-not-showing-original-colour
https://stackoverflow.com/questions/30621561/disable-icon-colorstatelist-in-navigationview/