About this app

Night light is an open-source app which uses KCAL to adjust blue light intensity of the display colors, so that viewing the screen at dark becomes pleasant for the eyes, and help you fall asleep faster (this is what science have proven so...).

Source - https://github.com/corphish/NightLight

Features
🌈 Uses KCAL to adjust blue light intensity
🕹️ Easy to use color controls
🛏️ Bed time mode
⏱️ Automation routines
🌙 Intensity fade in/out
📕 Profiles
⚡ Tasker plugin integration
🔒 Lock screen options
😍 Great UI

🌈 KCAL FOR THE WIN! 🌈
KCAL is a display driver tuning feature for Qualcomm devices, written by savoca. This is used by Night Light to adjust blue light by manipulating screen RGB. Since the changes are done in driver level, this is THE MOST efficient blue light filter, with the changes being visible all over the screen anytime.

🕹️ COLOR CONTROLS 🕹️
Night Light provides both simple and advanced color controls for the user. For those who want one simple control, the color temperature control is for them, while for the advanced users, the app lets full screen RGB control.

🛏️ BED TIME MODE 🛏️
Bed time mode makes your screen grayscale which can help you to fall asleep faster.

⏱️ AUTOMATION ROUTINES ⏱️
With automation routines, you have total control on how Night Light settings are applied throughout the day. Set different routines for different time periods during which the Night Light intensity of your choice will be applied.

🌙 INTENSITY FADE IN/OUT 🌙
You can also choose to have Night Light fade in or out from one intensity to another intensity as part of an automation routine.

📕 PROFILES 📕
Night Light lets you create profiles, which are basically collection of settings, which you can easily apply later on with one click.

⚡ TASKER PLUGIN INTEGRATION ⚡
If the automation features provided by the app is not sufficient for you, then you can use Tasker to handle the automation for you while Night Light does the blue light adjustment the way you want. Night Light is supported as a plugin for Tasker. You can get Tasker from https://tasker.joaoapps.com/.

🔒 LOCK SCREEN 🔒
Can automatically turn off the Night Light in lock screen, and turn it back on when the device is unlocked.

😍 UI CAN BE SIMPLE YET AMAZING AT THE SAME TIME 😍
Night Light features a simple and attractive UI, which uses the best of what Material Design has to offer, and provides a very easy-to-use user interface. It provides a neat dashboard which provides one click controls for commonly used features. It also provides dark and light theme and icon customization.

Requirements
- Kernel supporting KCAL.
- Root access.

Permissions required
- Location - It is used to determine sunset/sunrise times for your location. (Your location info isn't shared, your privacy is maintained)
- Internet - It is used to determine approximate location (when exact location is not available) to determine sunset/sunrise times for your location.

New features

Night Light 3.0 is here!

- Automation got even better with automation routines.
- Set different settings for different time periods using automation routines.
- Added Night Light fading in/out support.
- Added option to automatically disable Night Light in lock screen and automatically turn it back on when the device is unlocked.
- Redesigned settings section.
- Updated the interface for creating and listing profiles.
- Fixed launcher shortcut toggle.

App Permissions

Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows an app to access approximate location.
Allows an app to access precise location.
Allows applications to open network sockets.
Allows applications to access information about networks.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.