Hi Lex. No the trims and doors are done in dulux white on white – a great match to the pearl white windows. It looked really good. I wanted him to use just the gloss white out of the tin but he explained about the yellowing that occurs and how he can't guarantee it will be white so he suggested the white on white to us when we were trying to match a white to the frames.
Hmm ... so this "White on White" is colour name?? Is it pure non-tinted white?
I'm still not sure from your post what paint type he used !! (water based or oil based) ... (paint type is different to paint colour)