code: private void buttonAboutActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonAboutActionPerformed
      NbUtils.plainMessageOk(null, java.util.ResourceBundle.getBundle("com/igormaznitsa/nbmindmap/i18n/Bundle").getString("MMDCfgPanel.buttonAbout.Text"), new AboutPanel());
    }
docs: GEN-LAST:event_buttonFontActionPerformed