Derek CORDEIRO wrote:
I'm no expert, but this seems to work:
\setupcolors [state=start, system=rgb]
\def\bw#1{\framed[background=color,backgroundcolor=black]{\color[white]{#1}}}
\setuppagenumbering[command=\bw,location={header,margin}]
\starttext
\input tufte
\stoptext
or
\def\bw#1%
{\framed
[background=color,
backgroundcolor=black,
foregroundcolor=white,
foregroundstyle=bold]
{#1}}
(best use \WhiteOnBlack or so since bw might conflict)
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