That's handy thank you, I had looked at Bitex as a slightly more expensive option and he does have the A171/F172 available (albeit sold out at the moment) in silver but only down to 24/28h.
It may be that I just deal with the hubs being black for ease/cheapness.
These are not the hubs you're looking for, but https://thecycleclinic.co.uk/collections/hubs has silver 20/24 hubs, either Bitex RAR/RAF12 or his own brand