Two original themes 'Debian Monster gfxboot' @ https://store.kde.org/p/1222522/ and 'Debian Monster [fbsplash]' by Don Maitino @ https://store.kde.org/p/1222865
combined into a unified grub theme with that same pop.
All artwork is the original authors, I've slightly modified something here and there to fit the grub theme format and tried to keep it as original as possible.
Two variant backgrounds and 16, 18, 24 and 32 size fonts included for a range of boot resolution sizes.
Tested with grub2-theme-preview and also I've applied this theme to my current system eos without any hiccups.
Please heed the warning within the install text file, I'm sure you know what your doing but one misspelled command could bork your system, I've done it many times in the past.
Install instructions within archive so extract to a temp folder and go forth and beautify your grub. ('-' ) Caveat emptor.

* Please ignore the double Restart / Shutdown entries as grub2-theme-preview has this function built-in and I have my own custom entry in grub. There is only one when normally booting.