gentoo-overlay/app-doc/devmanual/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer type="project">
  <email>devmanual@gentoo.org</email>
  <description>
    Bugs for the devmanual documentation itself must be filed under
    product "Documentation", component "Devmanual"
  </description>
</maintainer>
<use>
  <flag name="offline">
    Use alternative minimal stylesheet instead of Tyrian theme
  </flag>
</use>
</pkgmetadata>