On the Mac, when night vision mode is enabled, it is difficult to read the FOV and Sky charts when the brightness is low. Increasing the brightness makes the background window too bright. Perhaps inverting the charts (i.e. black stars, etc. on a white background will help.
Resolution
Implemented. Also for V1.6.1.
An additional checkbox in Preferences→General→Night Vision Mode Settings does the trick (in both Mac and Windows).