gentoo-overlay/gnome-base/gnome-extra-apps/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer type="project">
	<email>gnome@gentoo.org</email>
	<name>Gentoo GNOME Desktop</name>
</maintainer>
<use>
	<flag name="games">Install Gnome Games</flag>
	<flag name="share">Install the <pkg>gnome-extra/gnome-user-share</pkg> personal file sharing tool</flag>
	<flag name="shotwell">Install the <pkg>media-gfx/shotwell</pkg> photo manager</flag>
	<flag name="tracker">Install the <pkg>app-misc/tracker</pkg> indexer and the GNOME packages that require it</flag>
</use>
</pkgmetadata>