This module provides routines for dealing with ANSI colors. The two main functions are ansifg and ansibg. With those functions, you can specify colors in RGB and let it output the correct ANSI color escape code according to the color depth support of the terminal (whether 16-color, 256-color, or 24bit). There are other functions to convert RGB to ANSI in specific color depths, or reverse functions to convert from ANSI to RGB codes.