Expanding the object used for Notification action's list

The action property for Notification is a list of objects, each consisting of an actionId and an actionText.

This suggestion is to expand the object used into a format like

actions: [

{ "actionId": "a1", "actionText": "Action 1", "actionIcon": "action1.png" }

,

{ "actionId": "a2", "actionText": "Action 2", "actionIcon": "action2.png" }

]

or going further, to expand the object into a separate class named something like NotificationAction so it can be subclasses and extended.