# Try to force a 16x9 mode first, then 16x10, then default GRUB_GFXMODE="1280x720,1280x800,auto" GRUB_THEME="/boot/grub/themes/kali/theme.txt" # Add splash option to enable plymouth if ! echo "$GRUB_CMDLINE_LINUX_DEFAULT" | grep -q splash; then GRUB_CMDLINE_LINUX_DEFAULT="$GRUB_CMDLINE_LINUX_DEFAULT splash" fi