GRUB_GFXPAYLOAD_LINUX=keep GRUB_DISABLE_RECOVERY=true GRUB_TIMEOUT=5 GRUB_DISABLE_LINUX_UUID=false GRUB_DISTRIBUTOR="ROSA" GRUB_DISABLE_OS_PROBER=false GRUB_OS_PROBER_LINKED=false GRUB_DEFAULT=saved GRUB_GFXMODE=1600x900 GRUB_SAVEDEFAULT=true GRUB_CMDLINE_LINUX_DEFAULT='logo.nologo' GRUB_THEME="/boot/grub2/themes/test/theme.txt" GRUB_BACKGROUND="/boot/grub2/themes/rosa/terminal_background.png"