@cgm2016 you can uninstall by quitting f.lux (in the menu to the left of your system clock) and deleting the files. You may want to check if your MBP is one of the ones affected by a video driver problem, this isn't normal behavior with f.lux: www.macrumors.com/2015/02/19/2011-macbook-pro-repair-program-apple/

@Merrill in the upper right corner of your mac (just to the left of your system clock) you can access all the preferences.

Reinstall seems to have done the trick. Thanks!

bumpppppp

The "OS X Dark theme at sunset" option seems to be not functioning in MacOS Sierra, can anyone else confirm?

In System Prefs > Displays do you have a f.lux profile? Delete it, then if you continue to have problems restart.

Any news about this issu?