Kumux - Kumux is a smart circadian color scheme designed for software like code editors.
Monitor Bright - Monitor Bright reduces with a simple trick the monitor brightness.
ModernFlyouts - An open source, modern, and Fluent Design-based replacement for the old Metro-themed flyouts present in Windows 10.
PangoBright - Screen dimming software that allows you to control the brightness of your laptop screens as well as external monitors.
Nocturne - Nocturne is simple app for switching a computer to night vision mode.
LG OnScreen Control - Allows to set the brightness (and other settings) of the monitor through DDC/CI. Meaning: keyboard and/mouse instead of having to fiddle with the OSD menu manually. http://www.lg.com/us/support/monitors