Windows 10's Creators Update added a handy feature designed to help spare your eyes as you browse the evening away. Night Light, as the feature's called, swipes functionality from the beloved f.lux app to adjust your screen's color temperature during after-dark computing sessions. That makes it easier to fall asleep when you're done. To activate Night Light, go to 'Settings->System->Display'. Once you've done so, open the feature's settings to fine-tune its behavior.