private void registerFormat(@NotNull WorkingCopyFormat format, @NotNull JPanel panel, @NotNull GridBagConstraints gb) {
    JRadioButton button = new JRadioButton(getFormatText(format));
    button.putClientProperty("format", format);

    panel.add(button, gb);
    gb.gridy += 1;

    formatGroup.add(button);
    formatButtons.add(button);
  }
private void registerFormat(@NotNull WorkingCopyFormat format, @NotNull JPanel panel, @NotNull GridBagConstraints gb)