Is there a possibily to dynamically add a change of assigned icon for this event scripter via a callAPI call to show state change when the event is triggered? If not you have to remember actual state or toggle twice to see the actual state and have it unchanged.
As far as I can see assigning an icon to the event defined using menu editor is a static thing for displaying the toggle switch.
NB: It's not a big thing though, I can live with this nice addition as it is