Look right above this sentence. Have you noticed the new Google +1 button? If not, you’re probably not alone.
Unlike Facebook’s new “Like” button announcement earlier this week, Google hasn’t said much yet about its new buttons.
Google employee Paul Lindner posted about them in the Developing with Google+ community on Google+. He says that the +1 and Share buttons are now consistent with the Follow and Badge widgets.
The change is mainly coloring: The +1 and Share buttons used to be a light gray, while the new ones are white.
If you’re using the +1 and/or Share buttons on your site, you shouldn’t need to make any changes. The new buttons should automagically replace the old ones. See the Google+ Plugins page for more information.