Customize Bootloader

By default, Arch Linux boot loader grub doesn’t use any theme. You can customize theme. Here’s a simple guide installing Grub2 themes (background, logos, fonts, scroll bar, etc).

Download Archlinux theme from AUR:
Archxion: grub2-theme-archxion
Archlinux: grub2-theme-archlinux

$ yay -S grub2-theme-archxion
$ yay -S grub2-theme-archlinux

Edit your /etc/default/grub and change line:

$ sudo code /etc/default/grub

#GRUB_THEME="/path/to/gfxtheme" to GRUB_THEME="/boot/grub/themes/Archxion/theme.txt" orGRUB_THEME="/boot/grub/themes/Archlinux/theme.txt"

The resolution the theme was designed to show best at 1024x768:
GRUB_GFXMODE=auto to GRUB_GFXMODE=1024x768

Update grub configuration:
# grub-mkconfig -o /boot/grub/grub.cfg