docs: private  void initialize() {
  		this.setHideable(false);
  	    this.setIcon(new ImageIcon(View.class.getResource("/resource/icon/16/094.png")));
  	    this.setName(Constant.messages.getString("sites.panel.title"));
  		this.setDefaultAccelerator(getView().getMenuShortcutKeyStroke(KeyEvent.VK_S, KeyEvent.SHIFT_DOWN_MASK, false));
  		this.setMnemonic(Constant.messages.getChar("sites.panel.mnemonic"));
  
  	    if (Model.getSingleton().getOptionsParam().getViewParam().getWmUiHandlingOption() == 0) {
  	    	this.setSize(300,200);
  	    }
  		
  		this.setLayout(new GridBagLayout());
  		this.add(this.getPanelToolbar(), LayoutHelper.getGBC(0, 0, 1, 0, new Insets(2,2,2,2)));
  		this.add(new ContextsSitesPanel(getTreeContext(), getTreeSite(), "sitesPanelScrollPane"), 
  				LayoutHelper.getGBC(0, 1, 1, 1.0, 1.0, GridBagConstraints.BOTH, new Insets(2,2,2,2)));
  
          expandRoot();
  	}