gentoo-overlay/dev-python/Kivy/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer>
    <email>slis@gentoo.org</email>
  </maintainer>
  <use>
    <flag name="camera">
      Install libraries needed to support camera
    </flag>
    <flag name="garden">
      Install garden tool to manage user maintained widgets
    </flag>
  </use>
</pkgmetadata>