Has helped fix me off of getting off the computer at night with the color/gamma changes.
Unfortunately I couldn't get it to work* on my Ubuntu box and found another app, Redshift, that seems to jive better with Linux: http://jonls.dk/redshift/
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* Ran without errors, but didn't tint my screen. I chalked it up to oddities of video card drivers on Linux.
It's been my standard for well over a decade. Preferable even to green-on-black.
The only downside is that a colorized 'ls' output is typically difficult to read (the blues used for directories are typically too dark).
You need to configure the colors as presented by the terminal, and I haven't mucked with that yet. Given that you're working with variations based on the ANSI color set, your initial set of values is limited.
There's a similar trick for vim color highlighting, though I've found the different color settings all involve tradeoffs, not all favorable.
You need to configure the colors as presented by the terminal, and I haven't mucked with that yet.