Grub changed its colors?

Hi,

usually grub coming from Budgie has a grey blackground.

For few days I have a black background with a blue overlay. It works as expected.

I know when that changed : when I modified /etc/default/grub on that only line

GRUB_DISTRIBUTOR=`echo -n $(lsb_release -ds 2> /dev/null || echo Debian) Budgie`

in order to have the name Budgie displayed ( multi-boot here, mainly with ubuntu systems ).

Why does the « look » of grub change after that ?

I’d prefer the grey one… if easy to get back.

It seems it’s because of that in /etc/grub.d/05_debian_theme

set_default_theme(){
	case $GRUB_DISTRIBUTOR in
		Tanglu|Ubuntu|Kubuntu)
			# Set a monochromatic theme for Tanglu/Ubuntu.
			echo "${1}set menu_color_normal=white/black"
			echo "${1}set menu_color_highlight=black/light-gray"

			if [ -e /usr/share/plymouth/themes/default.grub ]; then
				sed "s/^/${1}/" /usr/share/plymouth/themes/default.grub
			fi
			# For plymouth backward compatiblity. Can be removed
			# after xenial.
			if [ -e /lib/plymouth/themes/default.grub ]; then
				sed "s/^/${1}/" /lib/plymouth/themes/default.grub
			fi
			;;
		*)
			# Set the traditional Debian blue theme.
			echo "${1}set menu_color_normal=cyan/blue"
			echo "${1}set menu_color_highlight=white/blue"
			;;
	esac
}

Since I have changed GRUB_DISTRIBUTOR in my /etc/default/grub then it applies the traditional Debian theme.

Not sure how to « improve » that.
Should I add Budgie in the list here

	case $GRUB_DISTRIBUTOR in
		Budgie|Tanglu|Ubuntu|Kubuntu)

?

Later : answer is no, not enough…

In my grub, that system appears as Ubuntu 20.04.1 LTS GNU/Linux Budgie - it was previoulsy « only » Ubuntu, a shape I don’t like as I have many *buntu installed on my machine.

Ok… so I ended up modifying :

django@ASGARD:~$ cat /etc/grub.d/40_custom
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
set color_normal=white/dark-gray		# définit les couleurs de texte/fond d'écran autour du cadre de menu
set menu_color_normal=white/dark-gray		# définit les couleurs de texte/fond d'écran dans le cadre de menu
set menu_color_highlight=dark-gray/white	# définit les couleurs de texte/surbrillance pour la ligne de menu sélectionnée
django@ASGARD:~$

Lemme know if you see a better alternative.