just looking for where the icons in a theme's zip folder are located to change the "settings list" icons (from homescreen go to menu>settings> and the list has icons next to each selection).

also, can someone tell me how to change the drop down settings? in this pic i'd like to find the files in the theme zip folder to change the black part behind "iPhone Killer" and the chrome part behind the apps. I just need the icon location inside the theme's zip folder.
Thanks!