
43 Folders had a post about Nocturne, a program that inverts your display colours. You can test this yourself before downloading by pressing CMD-option-ctrl-8, but Nocturne adds some additional preferences.
I've started using Nocturne to reduce my Terminal Illness. Once my eyes start to hurt I invert the screen to reduce my eye strain. I've found the white-on-black colour scheme perfect for reading mail, which I spend at least 2 hours a day doing.
I mainly use Nocturne's Monochrome feature, but the true inversion does give a cool effect. Check out how our favorite password manager looks:
Sweet! :)
Update: I can finally code outside now! I'm sitting on my front porch right now and thanks the Nocturne I'm actually able to code. Nice!