xoris grabs the RGB color value of any pixel on the screen and dumps the color's name to stdout. The output can be printed either as hex (#b0958e), as a triple of decimal RGB values (229 229 229), or as an abstract name (gray90). xoris has only been tested on displays with a bit depth of 24 bpp.
Xoscope (or oscope) is a digital oscilloscope using input from a sound card or EsounD and/or a ProbeScope/osziFOX. Its features include 8 simultaneous signal displays, 1 us/div to 2 s/div time scale, built-in and external math functions including inverse, sum, diff, avg, xy, and FFT, 23 memory buffers, 5 automatic measurements, and file save/load.