I would love to highlight all loose items in the world, but I don't think it can be done without proper scripting. Corpse highlighting works by a cloak spell (identical to the way the Power Armor Targetting HUD works), and unfortunately only "actors" are targettable by non-script spells, not objects. The highlighting from Scrapper rank 2 (which does run on objects) seems to be hard-coded or script based, I can't find any spell effects related to it, so it also can't be changed at this time (other than adding scrap components to items which categorizes them irreversibly as junk :mad: ).