Google is testing shading the background color behind the search ads, sponsored results, and the local pack in the Google Search results. I do like that Google is testing differentiating the organic/free listings with the search ads/sponsored listings.
I don't know if that is Google's intent here but Google is testing it.
I cannot replicate this but Darren Shaw spotted this and posted these screenshots on LinkedIn:
Do you see this? Thomas Eccel also noticed this.
Forum discussion at LinkedIn.
