Thanks for the reply, man.
I just checked out dconf-editor, and it the entry under
com>canonical>unity-greeter appears to be the file at
/usr/share/glib-2.0/schemas/com.canonical.unity-greeter. I have already tried
to manually edit this config to no avail. I also just tried it with
dconf-editor and the changes still don't do anything. I exit Openbox and the
login manager still looks exactly the same.
I would also like to mention that this is a completely fresh ISO with nothing
added but a few programs.