There are 3 repositories under grub-themes topic.
A Grub Theme in the style of Minecraft!
Collection of decent Community-made GRUB themes. Contributions welcome!
DedSec GRUB Theme 💀🖤
GRUB Themes with the theme from the anime The Quintessential Quintuplets, Fate Series, Lycoris Recoil, VTuber, Game Doki Doki Literature Club, and Touhou Project :computer: :heart:
Basic grub theme with material gruvbox style
List of Open Source grub-themes and easy installation
Customizable grub theme for Linux distros.
A compact theme for GRUB
My GRUB loader configuration (GRUB theme) with tools to clone and tweak it based on Matter by mateosss and Vimix by vinceliuice