This filter is applied within the bcn_admin class in the admin_page() function. This filter is intended to allow users to override the default behavior of Breadcrumb NavXT to hide settings for non-public taxonomies. This filter was introduced in version 4.3. In version 6.0, a third parameter was added. It receives three parameters:
- $public – (boolean)(required) Whether or not the taxonomy is a publicly visible taxonomy as represented by the public property of the taxonomy object
- $taxonomy_name – (string)(optional) The name of the taxonomy
- $posttype_name – (string)(optional) The name of the post type that the taxonomy is available for, may be
NULLif a post type is not available