What are they?Cover them with those little patches designed to stop that happening.
The patches are clear vinyl. Not much good it it's already scratched though, as you say. Fitting the headset to my new frame a couple of weeks ago I managed to chip the paint at the top of the headtube, however a small Union Jack sticker on either side of the tube managed to actually look quite fetching.It's already happened though.
Patches would make the wonderfulness that is my bike even less perfect.
any idea what kind of paint?
And if you can't get an exact match go a shade lighter. Darker and it will be visible from Mars.Tin of Airfix/Humbrol enamel, or similar, should do the trick.