Awesome

Luminance

Luminance is a system tray application inspired by Lumen (https://github.com/anishathalye/lumen) that adjusts the brightness of your screen based on it's foreground contents. It'll automatically brighten your screen when you're looking at a dark window (e.g: Terminal) and automatically darken your screen when you're looking at a bright window (e.g: a web browser) <b> Luminance </b> is built in Java and it's targeted for Windows users only. Linux support will be added later.

Download

Jar file: https://www.dropbox.com/s/utz3lqyj54khifj/luminance.jar?dl=0