Microsoft is testing using black-colored review stars in its Bing Search results. This is instead of the yellow or orange review stars. I am not sure why they are testing it in black, but they are.
This was spotted by Frank Sandtmann who posted some screenshots of this on Mastodon:
Do you prefer the black color for the review stars?
Forum discussion at Mastodon.
Note: This was pre-written and scheduled to be posted today, I am currently offline for Shavout.