Google is about to launch a new AdWords logo and design for the AdWords advertising console.
Here is a picture of the top bar, gray theme and a new Google AdWords logo that goes with it.
To compare that to the old design, here is a picture of that:
Seems like the advertisers who are seeing this new interface overall like it and are excited to see it.
I personally do not see it and Google has not announced anything new with the AdWords interface yet. But it wouldn't surprise me if this goes live shortly.