images {
      image: "cube-blue.png" COMP;
      image: "cube-purple.png" COMP;
   }

   group {
      name: "blue-cube";

      parts {

         part {
            name: "cube";
            type: IMAGE;
            mouse_events: 1;
            repeat_events: 0;
            description {
               state: "default" 0.0;
               image.normal: "cube-blue.png";
            }
         }

      }
   }

   group {
      name: "purple-cube";

      parts {

         part {
            name: "cube";
            type: IMAGE;
            mouse_events: 1;
            repeat_events: 0;
            description {
               state: "default" 0.0;
               image.normal: "cube-purple.png";
            }
         }

      }
   }