gentoo-overlay/games-strategy/heroes3/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <herd>games</herd>
  <use>
    <flag name="maps">Installs optional map data</flag>
    <flag name="music">Installs optional music data</flag>
    <flag name="sounds">Installs optional sound data</flag>
  </use>
</pkgmetadata>