I don't see why 'white' had to be mentioned at all. As to the OP, that is frustrating to think the idea discussed was implemented without even a reference. How

I don't see why 'white' had to be mentioned at all. As to the OP, that is frustrating to think the idea discussed was implemented without even a reference. However, that was in 2016 and - for good reasons - she did not start on it herself until 2018. In that time, maybe the googlers put a lot of effort into it, involved a lot of other people and as OP had not kicked it off sooner, maybe assumed (wrongly) she had no further interest in progressing it.