| .ds Dc black |
| .ds Cc \*(Dc |
| .de CL \" Color selection macro |
| . \" |
| . \" $1=color (e.g. .CL red) or |
| . \" $1=textcolor on backgroundcolor (e.g. .CL "red on blue") |
| . \" $1=red green blue rgb (e.g. .CL ".2 .3 .4 rgb") or |
| . \" $1=hue saturation brightness hsb (e.g. .CL ".5 .6 .7 hsb") |
| . \" $2=text |
| . \" |
| . \" If no arguments are given the default color (usually black) will be |
| . \" restored. If $2 is omitted the color selected by $1 remains in effect |
| . \" until another color is selected. If two arguments are given $2 will be |
| . \" printed in color $1 and then the default color will be restored. |
| . \" |
| . \" The color of the text and the background can be selected by setting $1 |
| . \" to "textcolor on backgroundcolor" where textcolor and backgroundcolor |
| . \" can be any of the known colors. For example use .CL "white on black" |
| . \" for reverse video printing. Changing color in a word can be accomplished |
| . \" by preceeding the characters with a \X'SetColor:val' command, where val |
| . \" is the color you wish to use. Named colors are case independent. |
| . \" |
| . \" Implementation details are device dependent and are handled in the |
| . \" appropriate post-processor. Requesting a color that's not available |
| . \" (eg. not defined in /usr/lib/postscript/color.ps) results in the use |
| . \" of default colors - black or white on black for reverse video mode. |
| . \" |
| . \" All colors may not be supported on every output device, and the direct |
| . \" specification of a color via an explicit rgb or hsb argument may also |
| . \" be device dependent. In any case, to be safe on PostScript devices, all |
| . \" numeric paramenters in the direct rgb or hsb specifications should lie |
| . \" between 0 and 1 (inclusive). The names of the currently available colors |
| . \" on PostScript printers are listed in file /usr/lib/postscript/color.ps. |
| . \" |
| .mk Ov |
| .if \\n(.$=0 .ds Cc \\*(Dc |
| .if \\n(.$=1 .ds Cc \\$1 |
| .if \\n(.$<2 \\X'SetColor:\\*(Cc' |
| .if \\n(.$=2 \\X'SetColor:\\$1'\\c |
| .if \\n(.$=2 'sp |\\n(Ovu |
| .if \\n(.$=2 \\$2 |
| .if \\n(.$=2 .mk Ov |
| .if \\n(.$=2 \\X'SetColor:\\*(Cc'\\c |
| 'sp |\\n(Ovu |
| .. |
