How easy would it be to edit a paper? A friend (who isn't very interested in HDLC) and I were talking about creating paper, wallpaper, or carpet with custom designs to make custom themes like creating Wallpaper or Carpet to make the room look like an actual room from Metroid. We just want to keep our wants simple and easy instead of making something too difficult like creating an item that has an actual 3d model. How complicated would it be to create custom wallpaper, carpet, or paper, where on the ISO would I be able to locate the data (an existing wallpaper, carpet, or paper) I can start playing with to create a blank template, and how should I add the custom wallpaper, carpet, or paper to my save data (preferably without USB Gecko)?