custom boot screen

Hi everyone, I've try to customized the boot entries i've detected the root path by "OC Shell" with the command "bcf boot dump" and after generated the map-table text file, but I don't able to rename "Macintosh HD" and finding the right root path to hide the EFI boot entry. How can I solve...

I am currently working on a Mac Classic Mod and would like to make the boot loader for Clover look like the classic OS 9 boot screen. I have done this for Chameleon/Chimera but have no idea where to start for Clover. There is no information on how to do so anywhere on the internet it seems...