This command allows to choose the colourmap to be used for printing bitmaps (see 'hart' command). The three build in colourmaps are "gray", "fire" and "kupl" (the previous default colourmap). Colourmaps can also be read from a file using the command 'cmap read,<fname>'. The format is of the form '#RRGGBB' for each colourmap entry on a new line and 'RR', 'GG' and 'BB' are the 'red', 'green' and 'blue' values given in hexadecimal ranging from 00 to FF. The current colourmap can be saved to a file using the command 'cmap write,<fname>'.
The RGB values of the current colourmap can be shown using the command 'show color'. The colourmap entries can also be altered using the variables 'cmap [<ic>,3]' and 'cmax[2]'.