| Option | Description |
|---|---|
| cm%u -destroy | destroy a color map |
| cm%u -getColor [%u] | without argument returns the 257x3 array of colormap entries; with an index between 0 and 256, returns the RGB color associated with that index |
| cm%u -kind | returns the name of the object kind associated with a given object |
| cm%u -setColor [%u %u %u %u] | modifies the color map entry : first value is the colormap index between 0 and 256 whereas the following three parameters are the RGB components of the color |