slackbuilds/academic/ghemical/ghemical.xml

<?xml version="1.0" encoding="UTF-8"?>
<mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
  <mime-type type="application/x-ghemical">
    <_comment>MM/QM project file</_comment>
    <magic priority="100">
      <match type="string" value="!Header gpr " offset="0"/>
    </magic>
    <glob pattern="*.gpr"/>
  </mime-type>
</mime-info>