Unique identifier for this menu item (e.g. used by {@link replace_menu_item()} and {@link remove_menu_item}. Also used as a CSS-class for icon customization.
$menuTitle
—
string
Localized title showing in the menu bar
$url
—
string
A relative URL that will be linked in the menu bar. Make sure to add a matching route via to this url.
$controllerClass
—
string
The controller class for this menu, used to check permisssions. If blank, it's assumed that this is public, and always shown to users who have the rights to access some other part of the admin area.