Great!

This app works well if you are on a single monitor. Very well! The problem is when you have two displays, the second display will always show the front-most window. If there isn’t a window, the screen will adjust to your brightness settings. It’s not exactly ideal and I would love to see a “Dim Unused Displays” button. Looks like the developers are actively updating this, though, so let’s see what happens! :-)

DerangedMind about HazeOver • Distraction Dimmer™, v1.4.4