A Model in the navigation menu is when the menu has no signifier which is identified via a gesture. From the Sephora app, on deep web pages the menu may very well be accessed by swiping horizontally within the left edge (a gesture which is problematic in iOS, because, from https://gregoryp80x1.westexwiki.com/1705012/what_is_actually_hyperlink_aggregation_management_protocol_lacp_huawei