I wanted to change the boring "e" in Plymouth to the "solar" theme. I ran "apt-get install plymouth-theme*" to get all the themes I could. When I went to change the theme, many populated the terminal, but solar did not, even though it was installed. I decided to not change the default configuration. Nonetheless, when I rebooted, I was met with the edubuntu logo. I deleted every theme except elementary and solar, and then the terminal told me there was "nothing to configure" when I tried to configure Plymouth again. Now, Plymouth doesn't work at all at shutdown, but on bootup still displays the edubuntu logo. What is going on and how can I fix this?