Matrix Grub Menu How To Enable

Edit the following file with your favourite text editor
/etc/default/grub i.e. sudo leafpad /etc/default/grub
find the line:
#GRUB_THEME="/path/to/gfxtheme"
press enter
copy & paste the following:
GRUB_THEME="/boot/grub/themes/matrix/theme.txt"
save and exit
run the command:
sudo up-grub
restart and enjoy the Matrix !!