Free download Bluelight Filter - Night Mode APK for Android, PC. Latest version is 2.0.2, update at March 9, 2016
Bluelight Filter - Night Mode version 2.0.2 is only one variant.
Addon to Bluelight Filter enabling to go beyond 80% of opacity. Main app is required and can be downloaded for free at http://goo.gl/V2Asnc Take care not to set the opacity...