rog-plymouth

Open terminal & run commands:

Note

Replate your username & path constains rog-plymouth

1. sudo mv //home/{username}/Downloads/rog-plymouth /usr/share/plymouth/themes

2. sudo update-alternatives --install /usr/share/plymouth/themes/default.plymouth default.plymouth /usr/share/plymouth/themes/rog-plymouth/rog-plymouth.plymouth 100

3. sudo update-alternatives --config default.plymouth

4. sudo update-initramfs -u