Cf.lumen Android App

The description of Cf.lumen: cf. Lumen adapts the colors on your android device based on the position of the sun or your custom configuration. Note: android 5. 0 is now required. Versions up to v3. 16 that support 4. 4 kitkat are still available from the xda thread (see far below). Performance drop since v3. 60? Turn on performance mode. When using the default settings your display will get a warmer tint (lower color temperature) when the sun is down vastly reducing strain on the eyes. Blue light makes your brain want to stay awake and a lower color temperatures reduces the amount of blue displayed using this in the evening reduces your brains effort to keep you awake at night. During sleeping hours by default a red filter is used. Red strains your eyes the least and retains your night vision. Light sensorthe light sensor can be used to automagically adjust the color: switch to the sleep filter in full dark or to the day filter (usually none) under bright lights..