There is a software that nobody cares about, it is the bootloader.
But I don’t and I will change this sad grub menu to a happy one.
To begin the config file to edit is located in /etc/default/grub
The parameters I’ve edited are :
It sets the resolution to 1920x1080 in 32bits colors and if it’s not possible it will use 1280x720 and if none of these too works it will select a resolution that works (auto).
It sets the kernel to use the same resolution as grub.
Tells grub to use a wallpaper located in /boot/grub/boot.png it accepts also jpeg but I prefer png.
You can also change the color of the text :
Or change the font :
If needed you can show the list of installed fonts by using the command fc-list and you convert a font to a grub font via the next command :
grub-mkfont -s 24 -o /boot/grub/fonts/myfont.pf2 /usr/share/fonts/ttf-linux-libertine/LinLibertine_M.otf
Once the changes have been done in the file you need to process the file :
grub-mkconfig -o /boot/grub/grub.cfg
And voilà :)
If needed here is the link to the online grub documentation : Grub Online Documentation.