Now the theme controls what data is set for progress updates.

experimental/ecdb/trunk/data/themes/default/groups/erase_disc.edc

@@ -3,6 +3,22 @@ group {
    name: "ecdb/erase_page";
    min: 640 170;
 
+   script {
+      public message(Msg_Type:type, id, ...) {
+         if ((type == MSG_INT_SET) && (id == 0)) {
+            new percent[10], sectors[100];
+            snprintf(percent, 10, "%d%%", getarg(2));
+            set_text(PART:"progress_percent", percent);
+            snprintf(sectors, 100, "%d/%d", getarg(3), getarg(4));
+            set_text(PART:"progress_text", sectors);
+
+            /* Also sent is the buffer available [getarg(5)] and
+             * the buffer capacity [getarg(6)]
+             */
+         }
+      }
+   }
+
    parts {
       part {
          name: "bg";