This file is indexed.

/usr/share/plymouth/themes/ubuntu-gnome-logo/ubuntu-gnome-logo.grub is in plymouth-theme-ubuntu-gnome-logo 17.10.4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
2
3
if background_color 45,51,53; then
  clear
fi