As #1163 was closed and it appears in latest nightly i opened a new issue.
It currently looks like this: http://i.imgur.com/vsrHZ.png
As you can see there are no window titles, applet icons are too big and there's no calendar anymore
As this is a theme related issue i'll close this again.
It only appears with 3rd party themes like Google Plus and maybe others (only tested the Google Plus one)