I took this as an opportunity to reinstall Manjaro on my small DELL laptop.
After the installation I had no theme activated in the boot menu. Thought there was an error during the installation, re-downloaded ISO, re-installed, same error. Then looked in
/etc/default/grub , the Manjaro theme was not entered, but was installed according to pacman.
Had to manually add the entry
GRUB_THEME="/usr/share/grub/themes/manjaro/theme.txt", because it was commented out and nothing about Manjaro was in there. Am i the only one with this (small) error?
I hope you can understand me as i am using a translator as my english is not good