I need to add a graphic to a create/edit/view screen for people to reference. I thought I could add a Custom Field with the type Read-only Text Field and just add an HTML image reference to the description. The problem is, I can't get the field to show up at all in the desired screen. I know the image is referenced correctly because it shows up on the admin Custom Field page. Am I using the wrong custom field type? Is there another custom field type that does what I need?