Blue-on-white (matching pics/tuxflotte-beschriftet-schatten.svg's
brand color rgb(52,101,164)) instead of GRUB's default white-on-black.
The logo image itself doesn't work here: classic gfxterm always paints
an opaque per-character cell background, so a background_image gets
fully covered by color_normal's background and never becomes visible -
confirmed by booting the composited variant in QEMU before dropping it
again. Showing the actual logo needs the GRUB theme/gfxmenu engine,
which this live ISO doesn't ship (empty /boot/grub2/themes, no
x86_64-efi module directory) - not attempted here. The logo fits more
naturally on the Plymouth splash or live-desktop wallpaper instead,
both already confirmed to render correctly.
Thomas Stallinger
c4f6079077