I needed a fix for this problem and used the advice to try the satin bronze spray paint. I will say i was very unhappy for having to go down this route. I'm really frustrated Delta can't be bothered to make something that matches this style and color given it's popularity. I will also say I bought 2 or 3 faucets from Amazon/Home Depot that were close in color and tried them out. nothing really matched so that is why i went down the DIY Route. Anyway, it worked sorta. Do I have a beverage water faucet that generally matches my sink faucet? Yes. Does it look like i spray painted it, yeah it does. That being said here is what i did. I had my old faucet that was brushed nickel from the old sink. I sanded it down to bare metal with 220 grit sand paper. Took apart the pieces as best i could and applied 3-4 coats of the Satin Bronze spray. It dries really quickly so doesn't take much time to do extra coats. It also goes on better thinner so didn't want to over spray. Lastly I applied 3 coats of minwax satin polycryclic with a foam brush to make it smooth to the touch and offer extra protection from cleaning products etc. I've attached my finished work. In general i'm happy with it but would have been happier if Delta offered a matching faucet.

https://trubuildconstruction.com/how-to-get-your-best-estimate/the-best-light-fixtures-to-match-delta-champagne-bronze capital lighting in aged bronze https://www.houzz.com/discussions/3066347/delta-champgne-bronze-faucet-match-light-fixture

We are doing a bathroom remodel and am trying to find a bathroom mirror for above our vanity that will match our Delta Champagne Bronze fixtures. Has anyone used West Elm mirrors in antique brass and found them to be a good match? Or any other mirrors that work well? We have decided not to mix metals so trying to find a closematch to Delta champagne bronze! Thanks for any leads!

Jocelyn Flared Metal Pendant 16" - $1300 Crystorama XAV-B8305-VG-BL Xavier 3 Light 16" Wide Pendant - $240