contextTree.setBackground(new java.awt.Color(204, 204, 204));
setMaximumSize(new java.awt.Dimension(2147483647, 2147483647)); setPreferredSize(new java.awt.Dimension(150, 200));
    private void initComponents() {        contextTree = new javax.swing.JTree();        setLayout(new java.awt.BorderLayout());        contextTree.setBackground(new java.awt.Color(204, 204, 204));        contextTree.setDragEnabled(true);        contextTree.setEditable(true);        contextTree.setPreferredSize(new java.awt.Dimension(150, 200));        add(contextTree, java.awt.BorderLayout.CENTER);    }