I have a unopened OEM black applique set for sale. This covers the "White China" center of the Generation 4 Prius.
Have you decided to NOT cover it? I actually think the white would look good, especially with a white Prius. The whole look has kind of grown on me. I think at first it seemed somewhat shocking....because it is somewhat unique. But I really think I'd keep the white trim, if I owned a white Prius. Might not, if I had a different color.
I was convinced that I would not like the white interior, hence the purchase - but I agree that the white goes so well with the white exterior that I am willing to part with the cosmetic feature.