plymouth-preview : Tool to preview the current Plymouth theme ( https://launchpad.net/plymouth-preview )
plymouth-theme-preview : Previewer and configurator for Plymouth boot splash ( https://github.com/maksbotan/plymouth-theme-preview )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a maksbotan
For Paludis use this rsync : rsync://gentoo.zugaina.org/maksbotan-portage
If you have a problem : ycarus(-at-)zugaina.org