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only adjust black color during box operations #2456

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only adjust black color during box operations #2456

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3 changes: 2 additions & 1 deletion lib/LaTeXML/Engine/TeX_Box.pool.ltxml
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Original file line number Diff line number Diff line change
Expand Up @@ -552,7 +552,8 @@ sub adjustBoxColor_rec {
sub adjustBoxColor_internal {
my ($color, $box) = @_;
if (my $font = $box->getFont) {
$box->setFont($font->merge(color => $color)); }
if (Black->equals($font->getColor)) {
$box->setFont($font->merge(color => $color)); } }
return; }

DefPrimitive('\box Number', sub {
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Binary file modified t/graphics/xcolors.pdf
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2 changes: 2 additions & 0 deletions t/graphics/xcolors.tex
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Expand Up @@ -252,6 +252,8 @@ \section{Boxes}
\copy\mybox
\setbox\mybox=\hbox{Should be Red!}
{\color{red}\copy\mybox}
\setbox\mybox=\hbox{The final word should be \textcolor{green}{green}}
\box\mybox

\section{Custom rgb directives}
\color{rgb:red,4;green,2;yellow,1} Brown
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4 changes: 3 additions & 1 deletion t/graphics/xcolors.xml
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Expand Up @@ -645,7 +645,9 @@ A=100*13 = 1300pt;</p>
<title><tag close=" ">11</tag>Boxes</title>
<para xml:id="S11.p1">
<p>Should NOT be Red!
<text color="#FF0000">Should be Red!</text></p>
<text color="#FF0000">Should be Red!</text>

The final word should be <text color="#00FF00">green</text></p>
</para>
</section>
<section inlist="toc" xml:id="S12">
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