Only themes that use the theme.ini or a module to change wallpaper can do it.

Most themer's forget or just dont like doing that.
I prefer to make the theme look exactly as posted when installed!

If you want to have walls set upon switching themes, do this.

Inside the litestep directory is a folder called themes.
Ex: C:\Litestep\themes\designed4\
Create a new text file
name it to "theme.ini"
enter this info:


These are assuming you have fonts in a folder called "misc"
and the wallpaper is in a folder called "wallpaper"
These folders MUST be in the theme folder to work.

This is part of the OTS2 folder structure.

This is a very common question here.