I actually use Nocturne pretty frequently to turn my screen monochrome if I am doing stuff outside of iTerm or my text editor — I find the use of color unmotivated and distracting in most programs, and especially websites
Here, here for Nocturne! I use it at night, switching to monochrome red night mode, and brightness down to the last setting. Sometimes in the morning I forget and think the screen isn't working.
I just downloaded Nocturne and it's not working for me on High Sierra. Is the most recent version really from 2009? May I ask what system you're using?
