by Ken Task.
Download the .mbz file and un-compress in a test directory.
Then look in the course directory of the un-compressed mbz and the course.xml file.
In the course.xml file one might find those 'styles'
<plugin_format_menutopic_course>
<menutopic id="1">
<config>$@NULL@$</config>
<css>$@NULL@$</css>
<js>$@NULL@$</js>
<html>$@NULL@$</html>
<tree>$@NULL@$</tree>
</menutopic>
Above is from a 3.11.highest test course using that menutopic course format but I have no styles defined - mine are blank. Your's should show something, I would think!!!!
'SoS', Ken