RedGamma
Turns your display red to preserve night vision
As an amateur astrophotographer, I like to use a small laptop to control my gear, the problem is that a standard display will ruin your acquired night vision. This program turns (temporarily) everything red to minimize the impact of the display on your night vision.
You may want to install a red cursor scheme, one is included (from Oxygen Cursors by LAvalon in GPL 3.0) in the source distribution.