Night Mode - Protect Eyes

Blue light emitted by phone screen is the major cause to eye strain and vision loss.
You are like the night owls: chat, play game, web browsing, read the news, e-mail, video, chat, messaging ... with your phone at night before
going to bed.Night Mode - Protect Eyes will help you protect your eyes by reduce the blue glare, can effectively protect the eyes
(especially when playing phone in bed at night).
Features of Night Mode - Protect Eyes:
- Reducing blue light, anti blue light, reduce light damage from the screen to your eyes.
- Provides 10 different colors for selection.
- You can customize the filter strength, the opacity of color.
- Adjust the screen brightness as desired.
- You can choose to show or hide a filter icon in the status bar, making it easy to tweak the settings at any time.
- You can choose whether or not the filter launches on startup.
- The simple user interface with material design

P/s: Communicate google+ groups with me
https://plus.google.com/communities/115826077479223007023?hl=vi