How can I locate the Variables for $categories

I'm launching the bosecom store, https://repairs.bosecom.org.uk (temp domain)

the menu needs work, i have been working on the layout as I have many categories and manufacturers.

I need some help with categories.

where is the $categories array created to be used in box_site_menu.inc.php

I guess you are looking for this: https://github.com/litecart/litecart/blob/dev/public_html/includes/boxes/box_site_menu.inc.php#L16

Sorry was looking at something else, that looks like the one.

apologies