Works well very effective
Nice app 👏
The app has a nice and unique interface. The default color of the filter is nice. I somehow find it a bit sutble then other apps. The only one and major issue with the app which is that it does not stay in memory and the filter goes away. A nice to have feature would be too auto detect time zones like Twilight and flux.
Dimming is pretty subtle, but more importantly, the timer doesn't work. It comes on and never turns back off. Also, there is a bar across the bottom of the screen that isn't being filtered. Seems unfinished.