We've seen Google testing black ad labels on desktop, but now here is what it looks like in the local pack. Note, the mobile black ad label has been around for some time but Google is now testing it on desktop and has been on mobile for some time.
Here is a screenshot from Glenn Gabe of it on desktop as he posted on Twitter:
Yea, it is hard to notice these black ad labels...
Forum discussion at Twitter and Local Search Forums.
