On the facts here I'm going to say yes it would conform, but although there are only two possible answers to your question there are lots of different ways of getting to either. Technically, despite the main windows being white, they could be considered 'similar' anyway. And since there are already windows (rooflights) with grey frames as well, that seals it for me. Even if it was a 'no' I can't imagine it would be expedient to take enforcement action in most cases.
But ultimately it's a matter of opinion, and at this stage the only one that matters is the LPA's.
