Thank you merlwiz79 but unless I am mistaken your 'how to' is for install grubgfx in Mint. My question was about to say to Mint to use for its Grub the image used by the other distro but without installing in Mint.
I want Mint uses its Grub but uses the image of the other distro directly of /boot/grub/message from it.
This other distro is not a .deb distro so I suppose it's not possible?!
P.S= Excuse me if I am not very clear in my explanations, my english is sometimes not very good
K.I.S.S. ===> "Keep It Simple, Stupid"
"Simplicity is the ultimate sophistication." (Leonardo da Vinci)
"Everything should be made as simple as possible, but no simpler." (Albert Einstein)