The class has a few manifest constants. First is the name of the standard color names file.
COLOR_NAMES_FILE = "rgb.txt"
Next, a list of all the pathnames in which to look for that file.
PATHS_LIST = [ '/usr/share/X11', '/usr/lib/X11' ]
The physical width and height of the list box are given in characters and lines, respectively.
NAME_WIDTH = 20 NAME_LINES = 22