Kumux - Kumux is a smart circadian color scheme designed for software like code editors.
Lunar.fyi - Control monitor brightness, adapt using the ambient light sensor, adjust volume, switch inputs and turn off displays without fiddling with clunky buttons.
Win10_BrightnessSlider - this app puts a Monitor Brightness icon to on Taskbar Tray. So you can access it with 1 click.
DisplayBuddy - Control the real brightness of your monitors directly from your Mac - no need to touch the buttons on your Monitor.
Nocturne - Nocturne is simple app for switching a computer to night vision mode.
Nocturnal - Have more control over your screen at night 🌙