Due to disbanding of Desktop-effects project[1], these packages are up
for grabs:

dev-python/compizconfig-python
x11-apps/fusion-icon
x11-libs/compiz-bcop
x11-libs/compizconfig-backend-gconf
x11-libs/compizconfig-backend-kconfig4
x11-libs/libcompizconfig
x11-misc/3dfb
x11-misc/3dfm
x11-misc/ccsm
x11-misc/simple-ccsm
x11-plugins/compiz-plugins-extra
x11-plugins/compiz-plugins-main
x11-plugins/compiz-plugins-unsupported
x11-themes/emerald-themes
x11-wm/compiz
x11-wm/compiz-fusion
x11-wm/emerald

[1] - https://bugs.gentoo.org/show_bug.cgi?id=625712

-- 
Best regards, Sergey Popov
Gentoo developer
Gentoo Quality Assurance project lead