Yes, LSN do flouro, although they humorously express 'reluctance' to do it as can be tricky on small i.e bike parts, as the electric charge is drawn all over place as there are constantly changing metal thickness in bike parts in small areas. A car bonnet much easier for example.
Flouro is a little more cash because they will use white as a base for flouro and silver for darker shades and metallics. Therefore, that's 2 colours, effectively, as undercoat as a separate type of powder doesn't really exist. It's a top coat on, a top coat.
The grey below is by LSN for my cromega, in bright sun mind, it isn't far off. I'm sure they do a darker one. I will find out in good time.
Ride yorkshire on an old bike.