And I'll aff my biut to this (see below). On Tue, 2017-11-28 at 14:57 +0000, Ralph Corderoy wrote: > Hi, > > I'll take an easy one. > > > > 1) How do I use colours inside documents? For example, I want to > > > colour a word blue. Also, are there ways to colour graphic > > > primitives as well? How about invert all colours? Basically, > > > how is colour-trickery done? > > See `info groff Colors | less'.
I have a personal macro package, tmac.ted, which is in the command line after "-ms" (s0 that I use the 'ms' macros, as in troff .... -ms -mted -Tps | grops .... which defines all sorts of things, one of which is colours. This presumes that the output will be finally formulated as a PS file. The basic section on colours is as follows: .\"================================================================= .\" COLOURS .ds RED "\X'ps: exec 1 0 0 setrgbcolor' .ds GREEN "\X'ps: exec 0 1 0 setrgbcolor' .ds BLUE "\X'ps: exec 0 0 1 setrgbcolor' .ds YELLOW "\X'ps: exec 1 1 0 setrgbcolor' .ds MAGENTA "\X'ps: exec 1 0 1 setrgbcolor' .ds CYAN "\X'ps: exec 0 1 1 setrgbcolor' .ds BLACK "\X'ps: exec 0 0 0 setrgbcolor' .ds WHITE "\X'ps: exec 1 1 1 setrgbcolor' .als GRE GREEN .als BLU BLUE .als YEL YELLOW .als MAG MAGENTA .als CYA CYAN .als BLA BLACK .als WHI WHITE .de colour .\"usage, e.g.: .colour RED \\*[\\$1] .. .\" ======================================================================= but you can add to these definitions to make other colours available. An alternative could be to express the definitions in CMYK colours. Then you can input the likes of: This word is in .BLU blue .BLA and this word is in .GRE green .BLA and so on. Hoping this helps! Ted.
