Modding new walls and backgrounds

EDIT: i posted here to get help with my background wall XML file but have since worked it out for myself. i Have updated the example below in case anyone else is wondering.

heres my config:
<?xml version="1.0" encoding="utf-8"?>
<Opbg name="BackWall LF1" identifier="FF_Wall_LF1" description="Command wall 1" allowattachitems="true" width="16" height="16" resizehorizontal="true" resizevertical="true">
<sprite texture="Mods/FrithsWalls/Content/Map/LF_BackgroundWalls1.png" sourcerect="334,0,690,229" depth="0.98" premultiplyalpha="false" origin="0.5,0.5" />
heres the item list:
<?xml version="1.0" encoding="utf-8"?>
<contentpackage name="FrithaWalls" path="Mods/FrithsWalls/filelist.xml" corepackage="false" gameversion="">
<Structure file="Mods/FrithsWalls/Content\Map/FrithsWalls.xml" />
Sseems to work, adds new item to structure menu in sub editor :D