Steve provided the screenshot of the notebookbar on Mac OSX (attachment 132750 [details]) and the shortcut toolbox (open, save, undo and redo icons) arent aligned between the hamburger menu tab and the File tab.
@Alex: Can you confirm this also happens on your end?
Build ID: 7378ec484278b9e9925ac66b8f377deaa40f401a
CPU threads: 4; OS: Mac OS X 10.12.4; UI render: GL;
TinderBox: MacOSX-x86_64@49-TDF, Branch:master, Time: 2017-04-23_01:23:40
Locale: nl-NL (nl_NL.UTF-8); Calc: group
Should be fixed after: