images {
   image: "plus.png" COMP;
   image: "minus.png" COMP;
}

group { name: "plus_img";
   parts {
      part { name: "img";
         type: IMAGE;
         description { state: "default" 0.0;
            image.normal: "plus.png";
         }
      }
   }
}

group { name: "minus_img";
   parts {
      part { name: "img";
         type: IMAGE;
         description { state: "default" 0.0;
            image.normal: "minus.png";
         }
      }
   }
}