Hi, As a nasty workaround I created /etc/grub.d/06_debian_theme_fix[0] with hard coded content. I've got a separate LUKS1 crypted /boot, hence "(crypto0)", update with appropriate grub device name for /boot (eg hd0,1) and remember to delete this when a proper fix appears. If /boot/grub/.background_cache.png resides on a LUKS2 this will not work.
Kind Regards -- Tom [0] """ #!/bin/sh set -e cp /usr/share/images/desktop-base/desktop-grub.png /boot/grub/.background_cache.png cat << EOF background_image (crypto0)/grub/.background_cache.png set color_normal=white/black set color_highlight=black/white set menu_color_normal=white/black set menu_color_highlight=black/white EOF """