This is the pro version of the generic Night Light (KCAL) which can be found here: https://play.google.com/store/apps/details?id=com.corphish.nightlight.generic

It contains all the features present in the generic version.
Generic Features
Uses KCAL to adjust blue light intensity.
️ Easy to use color controls.
⚙️ Color intensities.
⏱️ Sophisticated automation.
Profiles.
⚡ Tasker plugin integeration.
Great UI.

And now, the things that sets the Pro version apart from the generic version.
KCAL brightness
Even better UI
❗ More cool features coming soon

KCAL BRIGHTNESS
In case you feel that minimum brightness of your phone is somehow too high to your liking, then this setting is here to save your day (or night?). This is a independent brightness setting which works by scaling the KCAL RGB up or down to simulate the brightness functionality, while at the same time, keeping your other Night Light settings unchanged. This does not interfere with your system brightness setting.

UI
While the generic version already has an awesome UI, the pro version takes this one level further, providing even more awesome user interface.

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.