If false, the menu item will be greyed out and unclickable.
Image Data URI with image dimensions inferred from the encoded string
Should be specified for submenu type menu items. If submenu is specified,
the type: 'submenu' can be omitted.
Can be normal, separator, submenu, or checkbox.
Defaults to 'normal' unless a 'submenu' key exists
If false, the menu item will be entirely hidden.
Generated using TypeDoc
Should only be specified for
checkboxtype menu items.