MapleStory Login Screen

Does anyone know where in the .wz files this background is stored? Steam recently added in a custom image option for grid view and I wanna make one for MapleStory :<

If the logo is actually like, part of the background, could someone with GMS find their version instead? I'd like the English version

This good?

Oh, and like all of the login stuff is in Map.

Thanks~

Here's the English logo, if that's any help lol.

edit: I went full retard. Here's the proper one.

Map/Obj/Login.img