I use Lubuntu 22.04 LTS on my computer, and am testing grub editing.

It seems Lubuntu is using some kind of graphical interface to show grub.

Can I disable it to use the same as Ubuntu's default?

Here's is my grub config file : cat /etc/default/grub

# If you change this file, run 'update-grub' afterwards to update

# /boot/grub/grub.cfg.

# For full documentation of the options in this file, see:

#   info -f grub -n 'Simple configuration'



GRUB_DEFAULT="0"

GRUB_TIMEOUT_STYLE="hidden"

GRUB_TIMEOUT="0"

GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`"

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

GRUB_CMDLINE_LINUX=""

GRUB_DISABLE_OS_PROBER="false"



# Uncomment to enable BadRAM filtering, modify to suit your needs

# This works with Linux (no patch required) and with any kernel that obtains

# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)

#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"



# Uncomment to disable graphical terminal (grub-pc only)

#GRUB_TERMINAL="console"



# The resolution used on graphical terminal

# note that you can use only modes which your graphic card supports via VBE

# you can see them in real GRUB with the command `vbeinfo'

#GRUB_GFXMODE="640x480"



# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux

#GRUB_DISABLE_LINUX_UUID="true"



# Uncomment to disable generation of recovery mode menu entries

#GRUB_DISABLE_RECOVERY="true"



# Uncomment to get a beep at grub start

#GRUB_INIT_TUNE="480 440 1"

These are the results of update-grub

Sourcing file `/etc/default/grub'

Sourcing file `/etc/default/grub.d/init-select.cfg'

Sourcing file `/etc/default/grub.d/lubuntu-grub-theme.cfg'

Generating grub configuration file ...

Found theme: /usr/share/grub/themes/lubuntu-grub-theme/theme.txt

Found linux image: /boot/vmlinuz-5.15.0-39-generic

Found initrd image: /boot/initrd.img-5.15.0-39-generic

Found linux image: /boot/vmlinuz-5.15.0-25-generic

Found initrd image: /boot/initrd.img-5.15.0-25-generic

Memtest86+ needs a 16-bit boot, that is not available on EFI, exiting

Warning: os-prober will be executed to detect other bootable partitions.

Its output will be used to detect bootable binaries on them and create new boot entries.

Found Windows Boot Manager on /dev/sda4@/efi/Microsoft/Boot/bootmgfw.efi

Adding boot menu entry for UEFI Firmware Settings ...

done

I can see it pointing thos two files:
`/etc/default/grub.d/lubuntu-grub-theme.cfg'
/usr/share/grub/themes/lubuntu-grub-theme/theme.txt

Should the solution be to delete the /usr/share/grub/themes/lubuntu-grub-theme/theme.txt so it doesn't load it ? Will this work ?