private void makeAndSetTabComponents() {
    final String[] tabTitles = {"Libraries", "Modes", "Tools", "Examples", "Updates"};
    tabLabels = new JLabel[4];

    for (int i = 0; i < 4; i++) {
      final int temp = i;
      tabLabels[i] =
          new JLabel(tabTitles[i]) {
            @Override
            protected void paintComponent(Graphics g) {
              g.setClip(
                  Toolkit.createRoundRect(
                      0, 0, getWidth(), getHeight(), temp == 0 ? 6 : 0, temp == 3 ? 6 : 0, 0, 0));
              super.paintComponent(g);
            }
          };
      tabLabels[i].setForeground(Color.WHITE);
      tabLabels[i].setBackground(new Color(0x2d4251));
      tabLabels[i].setOpaque(true);
      tabLabels[i].setBorder(BorderFactory.createEmptyBorder(6, 6, 6, 6));
      tabLabels[i].setPreferredSize(new Dimension(TAB_WIDTH, TAB_HEIGHT));
      tabLabels[i].setHorizontalAlignment(SwingConstants.CENTER);
      tabLabels[i].setFont(Toolkit.getSansFont(14, Font.BOLD));
      tabbedPane.setTabComponentAt(i, tabLabels[i]);
    }

    updateTabPanel =
        new JPanel() {
          @Override
          protected void paintComponent(Graphics g) {
            g.setClip(Toolkit.createRoundRect(0, 0, getWidth(), getHeight(), 6, 6, 0, 0));
            super.paintComponent(g);
          }
        };
    ;
    updateTabLabel = new JLabel("Updates");
    updateTabLabel.setFont(Toolkit.getSansFont(14, Font.BOLD));
    numberLabel.setVerticalTextPosition(SwingConstants.CENTER);
    numberLabel.setHorizontalTextPosition(SwingConstants.CENTER);
    numberLabel.setFont(Toolkit.getSansFont(14, Font.BOLD));
    numberLabel.setForeground(Color.WHITE);
    updateTabPanel.setOpaque(true);
    updateTabPanel.setBackground(new Color(0x2d4251));
    updateTabLabel.setForeground(Color.WHITE);
    updateTabPanel.setBorder(BorderFactory.createEmptyBorder(6, 6, 6, 6));
    updateTabPanel.setPreferredSize(new Dimension(TAB_WIDTH, TAB_HEIGHT));
    tabbedPane.setTabComponentAt(4, updateTabPanel);

    GroupLayout tabLayout = new GroupLayout(updateTabPanel);
    tabLayout.setAutoCreateGaps(true);
    updateTabPanel.setLayout(tabLayout);
    tabLayout.setHorizontalGroup(
        tabLayout
            .createSequentialGroup()
            .addPreferredGap(
                LayoutStyle.ComponentPlacement.RELATED, GroupLayout.PREFERRED_SIZE, Short.MAX_VALUE)
            .addComponent(updateTabLabel)
            .addComponent(numberLabel)
            .addPreferredGap(
                LayoutStyle.ComponentPlacement.RELATED,
                GroupLayout.PREFERRED_SIZE,
                Short.MAX_VALUE));
    tabLayout.setVerticalGroup(
        tabLayout
            .createParallelGroup(GroupLayout.Alignment.CENTER)
            .addComponent(numberLabel)
            .addComponent(updateTabLabel));

    numberLabel.setVisible(false);
  }
  protected void buildErrorPanel() {
    errorPanel = new JPanel();
    GroupLayout layout = new GroupLayout(errorPanel);
    layout.setAutoCreateGaps(true);
    layout.setAutoCreateContainerGaps(true);
    errorPanel.setLayout(layout);
    //    errorPanel.setBorder(BorderFactory.createMatteBorder(2, 0, 0, 0, Color.BLACK));
    errorMessage = new JTextPane();
    errorMessage.setEditable(false);
    errorMessage.setContentType("text/html");
    errorMessage.setText(
        "<html><body>Could not connect to the Processing server.<br>"
            + "Contributions cannot be installed or updated without an Internet connection.<br>"
            + "Please verify your network connection again, then try connecting again.</body></html>");
    errorMessage.setFont(Toolkit.getSansFont(14, Font.PLAIN));
    errorMessage.setMaximumSize(new Dimension(550, 50));
    errorMessage.setOpaque(false);

    StyledDocument doc = errorMessage.getStyledDocument();
    SimpleAttributeSet center = new SimpleAttributeSet();
    StyleConstants.setAlignment(center, StyleConstants.ALIGN_CENTER);
    doc.setParagraphAttributes(0, doc.getLength(), center, false);

    closeButton = new JButton("X");
    closeButton.setContentAreaFilled(false);
    closeButton.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            contribDialog.makeAndShowTab(false, false);
          }
        });
    tryAgainButton = new JButton("Try Again");
    tryAgainButton.setFont(Toolkit.getSansFont(14, Font.PLAIN));
    tryAgainButton.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            contribDialog.makeAndShowTab(false, true);
            contribDialog.downloadAndUpdateContributionListing(editor.getBase());
          }
        });
    layout.setHorizontalGroup(
        layout
            .createSequentialGroup()
            .addPreferredGap(
                LayoutStyle.ComponentPlacement.RELATED, GroupLayout.PREFERRED_SIZE, Short.MAX_VALUE)
            .addGroup(
                layout
                    .createParallelGroup(GroupLayout.Alignment.CENTER)
                    .addComponent(errorMessage)
                    .addComponent(
                        tryAgainButton,
                        StatusPanel.BUTTON_WIDTH,
                        StatusPanel.BUTTON_WIDTH,
                        StatusPanel.BUTTON_WIDTH))
            .addPreferredGap(
                LayoutStyle.ComponentPlacement.RELATED, GroupLayout.PREFERRED_SIZE, Short.MAX_VALUE)
            .addComponent(closeButton));
    layout.setVerticalGroup(
        layout
            .createSequentialGroup()
            .addGroup(
                layout.createParallelGroup().addComponent(errorMessage).addComponent(closeButton))
            .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED)
            .addComponent(tryAgainButton));
    errorPanel.setBackground(Color.PINK);
    errorPanel.validate();
  }
  protected boolean exportApplicationPrompt() throws IOException, SketchException {
    JPanel panel = new JPanel();
    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
    panel.add(Box.createVerticalStrut(6));

    // Box panel = Box.createVerticalBox();

    // Box labelBox = Box.createHorizontalBox();
    //    String msg = "<html>Click Export to Application to create a standalone, " +
    //      "double-clickable application for the selected plaforms.";

    //    String msg = "Export to Application creates a standalone, \n" +
    //      "double-clickable application for the selected plaforms.";
    String line1 = "Export to Application creates double-clickable,";
    String line2 = "standalone applications for the selected plaforms.";
    JLabel label1 = new JLabel(line1, SwingConstants.CENTER);
    JLabel label2 = new JLabel(line2, SwingConstants.CENTER);
    label1.setAlignmentX(Component.LEFT_ALIGNMENT);
    label2.setAlignmentX(Component.LEFT_ALIGNMENT);
    //    label1.setAlignmentX();
    //    label2.setAlignmentX(0);
    panel.add(label1);
    panel.add(label2);
    int wide = label2.getPreferredSize().width;
    panel.add(Box.createVerticalStrut(12));

    final JCheckBox windowsButton = new JCheckBox("Windows");
    // windowsButton.setMnemonic(KeyEvent.VK_W);
    windowsButton.setSelected(Preferences.getBoolean("export.application.platform.windows"));
    windowsButton.addItemListener(
        new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            Preferences.setBoolean(
                "export.application.platform.windows", windowsButton.isSelected());
          }
        });

    final JCheckBox macosxButton = new JCheckBox("Mac OS X");
    // macosxButton.setMnemonic(KeyEvent.VK_M);
    macosxButton.setSelected(Preferences.getBoolean("export.application.platform.macosx"));
    macosxButton.addItemListener(
        new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            Preferences.setBoolean("export.application.platform.macosx", macosxButton.isSelected());
          }
        });

    final JCheckBox linuxButton = new JCheckBox("Linux");
    // linuxButton.setMnemonic(KeyEvent.VK_L);
    linuxButton.setSelected(Preferences.getBoolean("export.application.platform.linux"));
    linuxButton.addItemListener(
        new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            Preferences.setBoolean("export.application.platform.linux", linuxButton.isSelected());
          }
        });

    JPanel platformPanel = new JPanel();
    // platformPanel.setLayout(new BoxLayout(platformPanel, BoxLayout.X_AXIS));
    platformPanel.add(windowsButton);
    platformPanel.add(Box.createHorizontalStrut(6));
    platformPanel.add(macosxButton);
    platformPanel.add(Box.createHorizontalStrut(6));
    platformPanel.add(linuxButton);
    platformPanel.setBorder(new TitledBorder("Platforms"));
    // Dimension goodIdea = new Dimension(wide, platformPanel.getPreferredSize().height);
    // platformPanel.setMaximumSize(goodIdea);
    wide = Math.max(wide, platformPanel.getPreferredSize().width);
    platformPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
    panel.add(platformPanel);

    //  Box indentPanel = Box.createHorizontalBox();
    //  indentPanel.add(Box.createHorizontalStrut(new JCheckBox().getPreferredSize().width));
    final JCheckBox showStopButton = new JCheckBox("Show a Stop button");
    // showStopButton.setMnemonic(KeyEvent.VK_S);
    showStopButton.setSelected(Preferences.getBoolean("export.application.stop"));
    showStopButton.addItemListener(
        new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            Preferences.setBoolean("export.application.stop", showStopButton.isSelected());
          }
        });
    showStopButton.setEnabled(Preferences.getBoolean("export.application.fullscreen"));
    showStopButton.setBorder(new EmptyBorder(3, 13, 6, 13));
    //  indentPanel.add(showStopButton);
    //  indentPanel.setAlignmentX(Component.LEFT_ALIGNMENT);

    final JCheckBox fullScreenButton = new JCheckBox("Full Screen (Present mode)");
    // fullscreenButton.setMnemonic(KeyEvent.VK_F);
    fullScreenButton.setSelected(Preferences.getBoolean("export.application.fullscreen"));
    fullScreenButton.addItemListener(
        new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            boolean sal = fullScreenButton.isSelected();
            Preferences.setBoolean("export.application.fullscreen", sal);
            showStopButton.setEnabled(sal);
          }
        });
    fullScreenButton.setBorder(new EmptyBorder(3, 13, 3, 13));

    JPanel optionPanel = new JPanel();
    optionPanel.setLayout(new BoxLayout(optionPanel, BoxLayout.Y_AXIS));
    optionPanel.add(fullScreenButton);
    optionPanel.add(showStopButton);
    //    optionPanel.add(indentPanel);
    optionPanel.setBorder(new TitledBorder("Options"));
    wide = Math.max(wide, platformPanel.getPreferredSize().width);
    // goodIdea = new Dimension(wide, optionPanel.getPreferredSize().height);
    optionPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
    // optionPanel.setMaximumSize(goodIdea);
    panel.add(optionPanel);

    Dimension good;
    // label1, label2, platformPanel, optionPanel
    good = new Dimension(wide, label1.getPreferredSize().height);
    label1.setMaximumSize(good);
    good = new Dimension(wide, label2.getPreferredSize().height);
    label2.setMaximumSize(good);
    good = new Dimension(wide, platformPanel.getPreferredSize().height);
    platformPanel.setMaximumSize(good);
    good = new Dimension(wide, optionPanel.getPreferredSize().height);
    optionPanel.setMaximumSize(good);

    //    JPanel actionPanel = new JPanel();
    //    optionPanel.setLayout(new BoxLayout(optionPanel, BoxLayout.X_AXIS));
    //    optionPanel.add(Box.createHorizontalGlue());

    //    final JDialog frame = new JDialog(editor, "Export to Application");

    //    JButton cancelButton = new JButton("Cancel");
    //    cancelButton.addActionListener(new ActionListener() {
    //      public void actionPerformed(ActionEvent e) {
    //        frame.dispose();
    //        return false;
    //      }
    //    });

    // Add the buttons in platform-specific order
    //    if (PApplet.platform == PConstants.MACOSX) {
    //      optionPanel.add(cancelButton);
    //      optionPanel.add(exportButton);
    //    } else {
    //      optionPanel.add(exportButton);
    //      optionPanel.add(cancelButton);
    //    }
    String[] options = {"Export", "Cancel"};
    final JOptionPane optionPane =
        new JOptionPane(
            panel,
            JOptionPane.PLAIN_MESSAGE,
            // JOptionPane.QUESTION_MESSAGE,
            JOptionPane.YES_NO_OPTION,
            null,
            options,
            options[0]);

    final JDialog dialog = new JDialog(this, "Export Options", true);
    dialog.setContentPane(optionPane);

    optionPane.addPropertyChangeListener(
        new PropertyChangeListener() {
          public void propertyChange(PropertyChangeEvent e) {
            String prop = e.getPropertyName();

            if (dialog.isVisible()
                && (e.getSource() == optionPane)
                && (prop.equals(JOptionPane.VALUE_PROPERTY))) {
              // If you were going to check something
              // before closing the window, you'd do
              // it here.
              dialog.setVisible(false);
            }
          }
        });
    dialog.pack();
    dialog.setResizable(false);

    Rectangle bounds = getBounds();
    dialog.setLocation(
        bounds.x + (bounds.width - dialog.getSize().width) / 2,
        bounds.y + (bounds.height - dialog.getSize().height) / 2);
    dialog.setVisible(true);

    Object value = optionPane.getValue();
    if (value.equals(options[0])) {
      return jmode.handleExportApplication(sketch);
    } else if (value.equals(options[1]) || value.equals(new Integer(-1))) {
      // closed window by hitting Cancel or ESC
      statusNotice("Export to Application canceled.");
    }
    return false;
  }