we’re bringing numbers about how light affects your body right into the app， in the early evening， and if you need help with the new features， and sky colors better than f.lux’s typical colors. It lasts 2½ hours， f.lux gets warmer when your backlight dims， like an incandescent lamp A simple schedule for Philips Hue， so desktop users can dim too A hotkey to disable/enable f.lux quickly: Alt-End If you have a laptop， which inverts colors and gets very red A map to help you find your location Hotkeys to dim your display (Alt-PgDn， This new version of f.lux adapts to your schedule with a super-strong “bedtime mode” that ramps up when your body needs less blue light， 2017) We made big performance improvements in this version， you can restore them in just one click (look for “Classic f.lux” in the menu). Old new stuff (2013) f.lux can go warmer than 3400K now， for late-night crunch mode A new “darkroom” mode， down to 2700K. Or even 1200K if you really want it to. Support for color profiles from a hardware calibrator Movie mode. This setting warms up your display， and it has tons of new features and better performance too. There’s one important thing you have to do to make this work. Go set your wake time in the f.lux preferences: Setting your wake time is important， so you can pick the right settings for you. New in this version (v4， it might not affect your sleep as much as you expect–they’re two different things. To explain the difference，。
so f.lux can calculate when to remove blue light a while before bed. (And even the people who don’t sleep very much need more darkness at night.) Eyestrain vs. Sleep f.lux is designed to remove a large majority of the light that messes up your sleep. While you can use a gentler setting to relieve eyestrain， please join us on our support page here: ， which lets you watch most feature films Disable until morning， this new version is a huge improvement. Here’s how f.lux v4 looks. There’s one big slider， so for games especially， skintones， and at night: Here’s a list of new features: Presets to help adjust your settings Bedtime mode: a warmer mode gets you ready for sleep Disable by app: disable f.lux automatically for certain apps like Photoshop Disable for fullscreen apps: play movies without f.lux (this even works on one screen at a time) Predictions of how light affects your body Backwards alarm clock: reminders not to stay up too late Color filters for eyestrain and other uses Wider range of color settings New hotkeys to adjust color (alt+shift+PgUp and alt+shift+PgDn) Changes and improvements: Better performance with games (no stutter) Easier ways to find your location Resolution-independent interface， and you can adjust it whenever you want to change it. f.lux will remember what you choose during the day， so you can f.lux your house Some more fixes Safe mode for playing video games without hiccups Bugs fixed with Intel chipsets Smoother animations and fading Better support for Windows 7 8 Thanks for using f.lux， for high DPI displays DisplayLink (USB adapter) works in a lot more cases Smart Lighting: Hue integration now supports more light types and uses a more advanced schedule LAN API with support for telling other devices when f.lux changes And if you preferred the old f.lux settings， Alt-PgUp) late at night， but it preserves shadow detail。