Do not view the "starred" bar
You have just introduced a new menu bar: "Home", "Tools"... etc, including the new "starred" category.
I'd actually like to read my pdfs, and the more screen area, the easier that is. Your new menu bar lessens the screen area I have to read my documents. Can you at least make this menu bar toggled, so that I and others wanting more screen space can get rid of it?