Way back in 2011, we talked about the interesting Chainfire3D plugin CF.lumen. For those of you who don’t remember, the plugin intelligently modified the color temperature of your device’s display based on the time of day and relative solar position. In other words, a customizable color filter would be added after sundown in the hopes of reducing eyestrain.
Unfortunately, however, the old CF.lumen plugin only worked with devices running Android 2.x. Now let’s fast forward to today, as XDA Senior Recognized Developer Chainfire‘s has brought CF.lumen back from the dead. Today’s new version of CF.lumen comes in at version 2.0, and it brings support for rooted devices running KitKat onwards. And rather than working as a plugin for Chainfire3D, CF.lumen v2 is its own independent application.
CF.lumen v2 functions in much the same way as the old plugin, as it allows you to set color filters to match the time of day. There are three conditions available (day, sundown, sleep), and each can be customized to your own liking. In addition, this version brings a colorblindness mode, which may help those with difficulty distinguishing between certain shades of colors.
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