Function:

mp_core_enhanced_image_navigation()

Purpose:

Unconfirmed. Has been included purely because of its existence in the _s theme which says its purpose is “To filter in a link to a content ID attribute for the next/previous image links on image attachment pages.”

This function may be removed.

Overview:

This function’s purpose is currently unconfirmed. It is currently hooked to “attachment_link” and appears to add “#main” to the end of image URLs.

Usage:
This function is automatically hooked and activated by the MP Core plugin when the Theme Specific Scripts have been activated.

Parameters:

(string) $url

The URL to the attachment page

(string) $id

The ID of the attachment

Returns:

(array)

The URL to the attachment page