Does anybody know why the productivity tools icons in the Office toolbar now have a black background in the ribbon interface?  This happened when Cisco did the WebEx UI overhaul & I am guessing this was not intended (see screenshot).

The new Outlook plug-in for Outlook 2013 (Windows) has made the ribbon icons a bit messed up...is there a fix scheduled (see attached).  There's a black border which I know wasn't intended & which wasn't there prior to WebEx doing it's upgrade a few ...