I'm debugging why a certain node type is not showing up and I noticed when clicking "manage fields" on the admin/content/types/list page, there are some labels mixed in with others that appear gray. I can move them, but I don't know why they are gray.
There is a Locations label of the locations module form but it is in gray. It doesn't appear on the other nodes that do show up on another domain.
I have an issue with Drupal not publishing this content type, which is an html table made from a csv file, on a specific url so I'm comparing this particular node with the other same content-type that are working.
I've found some differences but I'd like to know the meaning of the gray. Why is it even there if not in use?