When I'm playing a game and f.lux changes the screen I need to exit the game because the FPS drops and it doesn't get better after time. So is there any option to let f.lux not change the screen until I left fullscreen mode. Something like the notification-options of AntiVirus programms.
There is a safe mode that may help with this.
Very nice idea to enable something like this with fullscreen apps.
What I recommend is, changing your color temperature to match your Day setting until you're done playing the video game.
Alternatively, you can also just exit f.lux and open it back up when you're done. Leave yourself a note somehow though until this becomes an automatic habit for you.