These ebuilds come from http://www.gentoo.org/proj/en/desktop/lxde/.
If you have some problems, go to the official site first.
shiki-colors : The elegance of a dark theme with the usability of a light theme ( http://code.google.com/p/gnome-colors/ )
shiki-colors-openbox : Shiki-Colors theme for Openbox ( http://jmcknight.deviantart.com/art/Shiki-Colors-for-Openbox-149966599 )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a lxde
For Paludis use this rsync : rsync://gentoo.zugaina.org/lxde-portage
If you have a problem : ycarus(-at-)zugaina.org