VTOY_TEXT_MENU_VER in grub.cfg not working?

[longpanda]

Yes. 
You can define another hbox in theme.txt and ask user to remain this hbox when they define new theme (like the hotkey tip hbox)

Code:

+ hbox{
    left = 5
    top = 95%
    width = 10%
    height = 25
    + label {text = "1.0.29 BIOS This is a New Ventoy release" color = "red" align = "left"}
}

As for the easter egg, I will point it out at some time if still nobody find it.