Package: grub-pc Version: 2.02~beta3-5 Followup-For: Bug #714414 This issue is caused by hardwired colors in 05_debian_theme.
Unless the script finds that 1) GRUB is running on an Ubuntu host OR that 2) a background image exists, cyan/blue and white/blue colors are enforced. Adding insult to injury, /etc/default/grub does not offer any means of overriding this. IMHO, the best solution would be to stop enforcing any default color scheme whatsoever. -- System Information: Debian Release: 9.0 APT prefers stable APT policy: (500, 'stable'), (500, 'oldstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-3-amd64 (SMP w/8 CPU cores) Locale: LANG=fi_FI.utf8, LC_CTYPE=fi_FI.utf8 (charmap=UTF-8), LANGUAGE=fi_FI.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages grub-pc depends on: ii debconf [debconf-2.0] 1.5.61 ii dpkg 1.18.24 ii grub-common 2.02~beta3-5 ii grub-pc-bin 2.02~beta3-5 ii grub2-common 2.02~beta3-5 ii ucf 3.0036 grub-pc recommends no packages. grub-pc suggests no packages. -- debconf information excluded