How to install grub theme

1. First Install GRUB

• pacman -S grub os-prober efibootmgr (later packages for efi systems and ability to dual boot)
• grub-install --target=i386-pc /dev/sda for legacy bios
• grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=GRUB for UEFI Systems

2. Make config grub-mkconfig -o /boot/grub/grub.cfg

3. Install theme pacman -S artix-grub-theme

4. Select theme add this line GRUB_THEME="/usr/share/grub/themes/artix/theme.txt in /etc/default/grub

5. Then update grub with step 2. again.