In his 2005 /XeTeX notes/
<http://mirror.las.iastate.edu/tex-archive/systems/doc/xetex/XeTeX-notes.pdf>,
Jonathan Kew writes :
4.1 \special commands
4.1.1 Color
The xdv2pdf driver supports several \specials to allow color to be used in
XeTeX documents. These are:
\special {x:textcolor=color}
\special {x:textcolorpush}
\special {x:textcolorpop}
\special {x:rulecolor=color}
\special {x:rulecolorpush}
\special {x:rulecolorpop}
where color is an RGB color value expressed as 6 hexadecimal digits.
However, using this with today's DVIPDFMX driver, I obtain only a black rule.
I can obtained the desired effect using :
\special {color push}%
\special {color cmyk 0.17 0.18 0.79 0.0}%
\vrule
\special {color pop}%
but would be interested to know if (and why) Jonathan's x:textcolor /
x:rulecolor specials are no longer supported.
/Philip Taylor/
