A Model of the navigation menu is when the menu has no signifier and it is located by a gesture. From the Sephora application, on deep internet pages the menu might be accessed by swiping horizontally around the left edge (a gesture that is problematic in iOS, given that, from https://edwina34i5.wikigop.com/1602381/guidelines_regarding_how_to_configure_hyperlink_aggregation_for_eap330