A pretty retro GRUB theme inspired by the boot up visuals on Silicon Graphics systems like the Indy.

1. Determine if you want to use 1080p or a higher resoultion for GRUB. Keep in mind that using a higher resolution may result in high console input latency on some machines.
   • You want to use >=1080p: Delete the beginning hash/number symbol from SGI/theme.txt, lines 48 - 54. Then follow additional instructions in step 3.
   • You DON'T want to use >=1080p: Leave the files be.
2. Copy the SGI folder into your GRUB's themes directory, e.g. /boot/grub/themes/. You may need root privileges.
3. Set GRUB_THEME in your GRUB configuration (e.g. in /etc/default/grub) to point to the newly-copied directory.
   • IF you want to use >=1080p: Make sure GRUB_GFXMODE=1920x1080.
4. Rebuild the GRUB configuration. (e.g. grub-mkconfig -o /boot/grub/grub.cfg)