Google shared on Google+ that they have updated the design for the AdWords reporting interface ever so slightly.
I believe Google internally called this update, "Kennedy Phase 2" based on the image screen shot they shared being named that. The changes include:
- The left-side navigation bar has been changed from white to gray, and the highlight color is now blue. This creates more distinction between the navigation tools and your campaign data, providing a streamlined navigation experience to help you find what you need quickly and easily.
- All campaign type icons have been re-designed to help you more easily see the campaign types you’re looking for. You’ll notice more distinct icons for Search, Display, Search Network with Display Select, Shopping, and Video campaigns.
- Radio buttons and checkboxes have been refined to give a more consistent look and experience with other Google products you use.
Here is a screen shot showing you those changes.
Forum discussion at Google+.