Take the rubber edging off while painting then put them back on and leave black.
Thats what I did and it looks fine.
As far as painting the rubber moulded flaps goes it is a bit more tricky. I decided
to get rid of mine after finding out that the following.
1. To get done professionally it is more expensive.
2. To do it yourself you need a special paint additive in the colour matched
spray pack to allow the paint to move with the rubber.
Good luck.