-- [[Will]]
+> I like making this configurable. I do fear that changing what's included
+> by default could break some existing uses of teximg? That needs to be
+> considered, and either the breakage documented in NEWS, or avoided. Also,
+> if mchem is dropped, I think the suggests on texlive-science in
+> debian/control should probably go? --[[Joey]]
+
diff --git a/IkiWiki/Plugin/teximg.pm b/IkiWiki/Plugin/teximg.pm
index 369c108..8c3379f 100644
--- a/IkiWiki/Plugin/teximg.pm