I've got to have my bumper done at some point after a badger snapped a chunk of it, so I feel your pain there, but like I said my dad works in that sort of thing so I may unbolt it and hand it to him for a few days, and see what the boys at british airways' paint bay can do!
The plastics came black, but they fade really bad over time, most people either colour code them or use some stuff called Back to black, which just restores the original colour, but like has been already said, looks like someone done a questionable job with some black paint, doesn't look like they've even been primed!