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-rw-r--r--macros/plain/graphics/miniltx.tex3
1 files changed, 2 insertions, 1 deletions
diff --git a/macros/plain/graphics/miniltx.tex b/macros/plain/graphics/miniltx.tex
index 6aabb24d42..ff4e78d0e3 100644
--- a/macros/plain/graphics/miniltx.tex
+++ b/macros/plain/graphics/miniltx.tex
@@ -545,7 +545,8 @@
% 2022/06/13
\ifx\mathcolor\@undefined
% simplified version of \mathcolor
- \protected\def\mathcolor{\begingroup\@ifnextchar[\mlx@mathcolora\mlx@mathcolorb}
+% 2022/12/02
+ \csname protected\endcsname\def\mathcolor{\begingroup\@ifnextchar[\mlx@mathcolora\mlx@mathcolorb}
\long\def\mlx@mathcolora[#1]#2#3{\color[#1]{#2}#3\endgroup}
\long\def\mlx@mathcolorb#1#2{\color{#1}#2\endgroup}
\fi