Custon object that will contain all plugin element specific options. This is where you store data (as object properties) about your plugin. Data should consist only of scalar values and plain objects.
Element height in pixels. (read-only)
Unique id of the element. (read-only)
Element width in pixels. (read-only)
Element X position in pixels. (read-only)
Element Y position in pixels. (read-only)
Element Z index. (read-only)
This is plugin data object, it contains data about your plugin element.