// WTF: this does not update packs!!
  // only updating info for selected pack. pulldown menus and info area!
  void updatePacks() {
    for (int i = 0; i < packPanels.size(); i++) {
      if (selectedPack == i && getIndex() >= 0) {
        ModPack pack = ModPack.getPackArray().get(getIndex());
        if (pack != null) {
          String mods = "";
          if (pack.getMods() != null) {
            mods += "<p>This pack contains the following mods by default:</p><ul>";
            for (String name : pack.getMods()) {
              mods += "<li>" + name + "</li>";
            }
            mods += "</ul>";
          }
          packPanels.get(i).setBackground(UIManager.getColor("control").darker().darker());
          packPanels.get(i).setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
          File tempDir =
              new File(
                  OSUtils.getCacheStorageLocation(), "ModPacks" + File.separator + pack.getDir());
          packInfo.setText(
              "<html><img src='file:///"
                  + tempDir.getPath()
                  + File.separator
                  + pack.getImageName()
                  + "' width=400 height=200></img> <br>"
                  + pack.getInfo()
                  + mods);
          packInfo.setCaretPosition(0);

          if (ModPack.getSelectedPack(isFTB()).getServerUrl().equals("")
              || ModPack.getSelectedPack(isFTB()).getServerUrl() == null) {
            server.setEnabled(false);
          } else {
            server.setEnabled(true);
          }
          String tempVer = Settings.getSettings().getPackVer(pack.getDir());
          version.removeActionListener(al);
          version.removeAllItems();
          version.addItem("Recommended");
          if (pack.getOldVersions() != null) {
            for (String s : pack.getOldVersions()) {
              version.addItem(s);
            }
            version.setSelectedItem(tempVer);
          }
          version.addActionListener(al);
        }
      } else {
        packPanels.get(i).setBackground(UIManager.getColor("control"));
        packPanels.get(i).setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
      }
    }
  }
 public static void cleanUp() {
   ModPack pack = ModPack.getSelectedPack();
   File tempFolder =
       new File(OSUtils.getDynamicStorageLocation(), "ModPacks" + sep + pack.getDir() + sep);
   for (String file : tempFolder.list()) {
     if (!file.equals(pack.getLogoName())
         && !file.equals(pack.getImageName())
         && !file.equals("version")
         && !file.equals(pack.getAnimation())) {
       try {
         if (Settings.getSettings().getDebugLauncher() && file.endsWith(".zip")) {
           Logger.logInfo("debug: retaining modpack file: " + tempFolder + File.separator + file);
         } else {
           FileUtils.delete(new File(tempFolder, file));
         }
       } catch (IOException e) {
         Logger.logError(e.getMessage(), e);
       }
     }
   }
 }