Missing buttons in top right hand corner Rated 5 out of 5 stars

Love the theme. Has been my theme of choice for years. Just upgraded Thunderbird to release 17 and I am missing the minimize, maximize and close (X) buttons in top right hand corner.
Thanks

This review is for a previous version of the add-on (2.0.4.2). 

What version of Office Black are you using? 2.1 should address this problem.