The color is always the problem. You would think that something as small as a drilled hole wouldn't be conspicuous but a shade or two just becomes awful. We had new side curtains made and the 'third world' installer put snaps in a different place drilling new holes. I had to remove the old snaps and fill them. It looks like hell and I thought I was doing a good job. I would think that whatever method you end up with, do some color tests. Absolutely essential.

White is never white.