Going to take my lights apart this afternoon, primarily to clean them but while they're open I might give them a bit of paint. I've read a few threads on here and seen the pictures, and am comfortable painting the surround black or another dark colour. But have people painted the chrome reflector inside the light as well? AND the clear lens at the front of the unit? I'm confused, as I love the look of darker headlights but am unsure as to what is legal with regards to darkness? What products have people used to paint the lens and reflector? And will halfords sell these products?