lahirdenganselamat wrote:lol, i've just finished edit my post, not knowing that you've answer it
well, dont you think that the script need a fix? i don't know how, but Main edition can have it's grub background, and if user want to use another pict, one can simply copy the pict to /boot/grub, remove the old pict, and run sudo grub-update. With that script, even if grub-update recignize the file, it won't use it..
The script /etc/grub.d/07_grub_theme sets some colors when /boot/grub/lmdekdebg.png is found, nothing more.
So,if removing the lmdekdebg.png image doesn't do a thing, I'm afraid the only option left is to purge the grub theme.