If you use Acrolinx for oXygen on Mac OS X, then you might notice some visual layout issues in the Acrolinx dialogs. For example, the radio buttons on the Segmentation and Filter tabs of the Options dialog look a bit ugly.
As a workaround, you can switch to a different look and feel setting in oXygen. In oXygen, open the preferences and change 'Look and Feel' from Mac OS X to Metal.
On older versions of oXygen, the Look and Feel option is under 'Global':
On newer versions of oXygen under 'Appearance':