gnome-desktop : Libraries for the gnome desktop that are not part of the UI ( https://git.gnome.org/browse/gnome-desktop )
gnome-session : Gnome session manager ( https://git.gnome.org/browse/gnome-session )
gnome-settings-daemon : Gnome Settings Daemon ( https://git.gnome.org/browse/gnome-settings-daemon )
gsettings-desktop-schemas : Collection of GSettings schemas for GNOME desktop ( https://git.gnome.org/browse/gsettings-desktop-schemas )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a elementary
For Paludis use this rsync : rsync://gentoo.zugaina.org/elementary-portage
If you have a problem : ycarus(-at-)zugaina.org