Install blubuntu-session-splashes by entering the following commands in the terminal:
sudo apt update sudo apt install blubuntu-session-splashes
Description:
Blubuntu look - Session splashes
The Blubuntu theme. . This package contains the Blubuntu Session splashes.
Homepage: https://launchpad.net/blubuntu-look
Version: 0.3.1
Section: universe/x11