Google Play
Darker Pro

Darker can lower your screen brightness to extremely low levels, to help prevent eyestrain during the night. Use the built-in color filter* to adjust the color of your display, perfect for filtering out harsh white backgrounds during the night.
*The color filter is similar to how the desktop version of f.lux works. Selecting a redder color will reduce more blue light emitted from the display.
Users can either upgrade the free version to Pro through in-app purchase, or directly purchase this version (for countries that don't support In-app purchases) - both are the same in terms of functionality.

Features only in the Pro version:
  • Auto-On & Auto-Off
  • Start at boot
  • Lower brightness below 20%
  • Darken navigation bar
  • Customizable notification buttons
    • Up to three buttons can be added for quick access.
    • Buttons to increase and decrease the brightness (+5%, -5%, +10%, -10%)
    • Buttons to set a specific brightness (@0%, @10%, @20%, ... , @90%, @100%)
    • Quick toggles (stop, pause, reset)
Note: When manually installing APK files, Android blocks the "Install" button from being pressed when Darker is running. This is NOT a bug. It's a protective measure to prevent malicious apps from camouflaging the install button. Pausing Darker will solve this.
Tasker Support
Darker has Tasker support, use these intents to send commands to Darker:
  • darkerpro.STOP
  • darkerpro.PAUSE
  • darkerpro.INCREASE_5
  • darkerpro.INCREASE_10
  • darkerpro.DECREASE_5
  • darkerpro.DECREASE_10
  • darkerpro.SET_10
  • darkerpro.SET_20
  • darkerpro.SET_30
  • darkerpro.SET_40
  • darkerpro.SET_50
  • darkerpro.SET_60
  • darkerpro.SET_70
  • darkerpro.SET_80
  • darkerpro.SET_90
  • darkerpro.SET_100
  • darkerpro.TOGGLE_COLOR
  • darkerpro.ENABLE_COLOR
  • darkerpro.DISABLE_COLOR
Add the above intents to Tasker by going to Action Category→Misc→Send Intent→Action, leave the other fields default, and note that the intents are case sensitive.
These two intents below need an additional parameter in the "Extra" field
darkerpro.SETCOLOR "Extra" field: COLOR:1~16 (Colors are numbered left to right, top to bottom)
darkerpro.COLORSTRENGTH "Extra" field: STRENGTH:1~10

What's New
  • Added option to ignore light sensor sudden brightness changes
  • Compact notification buttons are back for Lollipop
  • Fixed crash when entering empty light sensor values
  • Removed APK pause option on Lollipop due to system limitations
Requirements: Varies with device

Darker Pro - screenshot  Darker Pro - screenshot

Darker Pro - screenshot  Darker Pro - screenshot