efl/data/elementary/themes/edc/efl/tab_page.edc

group { "efl/tab_page";
   parts {
      spacer { "base";
         scale;
         desc { "default";
         }
      }
      swallow { "efl.content";
         scale;
         desc { "default";
            rel.to: "base";
         }
      }
   }
}