hashColor = UIManager.getColor("Tree.hash"); if (hashColor == null) hashColor = Color.black;
  protected void installDefaults()  {    LookAndFeel.installColorsAndFont(tree, "Tree.background",                                     "Tree.foreground", "Tree.font");    tree.setOpaque(true);    rightChildIndent = UIManager.getInt("Tree.rightChildIndent");    leftChildIndent = UIManager.getInt("Tree.leftChildIndent");    totalChildIndent = rightChildIndent + leftChildIndent;    setRowHeight(UIManager.getInt("Tree.rowHeight"));    tree.setRowHeight(getRowHeight());    tree.setScrollsOnExpand(UIManager.getBoolean("Tree.scrollsOnExpand"));    setExpandedIcon(UIManager.getIcon("Tree.expandedIcon"));    setCollapsedIcon(UIManager.getIcon("Tree.collapsedIcon"));  }