Reference

XStandardColormap(3x) on Linux

The text 0daaaea09b95, as Debian 2.2 (Potato), Debian 2.1 (Slink), Debian 2.0 (Hamm), Debian 1.3 (Bo) shipped it.

allocate, set, or read a standard colormap structure

XStandardColormap(3x) on Linux now