What I got in mail from G+
Following in the footsteps of our new red and white Google+ icon, the
+1 button is sporting a fresh coat of paint. Stop by the configuration
tool to see how the new pixels look across all the various sizes and
shapes of the +1 button:
https://developers.google.com/+/plugins/+1button/config
There are no changes to the functionality of the +1 button. This is
currently in preview and you must be logged into your preview account
to view and test the updated button. If you have any questions or
comments, please join us in the Google+ Developers forum:
https://groups.google.com/group/google-plus-developers/