Currently there are 4 Plymouth themes in the Fedora repositories.
- Charge (Default theme in Leonidas)
- Spinfinity (A throbber that moves in a path shaped like the infinity sign)
- Solar (Default theme in Cambridge - the planet with exploding pulsars)
- Fade-In (Fedora logo fading in and out in a star field)
sudo yum install plymouth-utils "plymouth-theme-*"
After the themes are downloaded, install them as follows:
sudo plymouth-set-default-theme spinfinity
sudo /usr/libexec/plymouth/plymouth-update-initrd
Replace "spinfinity" above with the name of either one of the themes you would like to try out.
EDIT: You can list the installed themes by running the following command
plymouth-set-default-theme --list
Hopefully the new theme system will encourage people to come up with new and exciting themes for Fedora boot-up.