index.js

...
 {
      label: 'Help',	      role: 'help',
      submenu: [	      submenu: [
        {	        {
          label: 'About',	          label: 'About',
...
if (process.platform === 'darwin') {
    const name = app.getName();
    menu.unshift({
      label: name,
      submenu: [
        {
          role: 'about',
        },
        {
          type: 'separator',
        },
        {
          role: 'services',
          submenu: [],
        },
        {
          type: 'separator',
        },
        {
          role: 'hide',
        },
        {
          role: 'hideothers',
        },
        {
          role: 'unhide',
        },
        {
          type: 'separator',
        },
        {
          role: 'quit',
        },
      ],
    });

    menu.splice(2, 0, {
      role: 'window',
      submenu: [
        {
          label: 'Close',
          accelerator: 'CmdOrCtrl+W',
          role: 'close'
        },
        {
          label: 'Minimize',
          accelerator: 'CmdOrCtrl+M',
          role: 'minimize'
        },
        {
          label: 'Zoom',
          role: 'zoom'
        },
        {
          type: 'separator'
        },
        {
          label: 'Bring All to Front',
          role: 'front'
        }
      ]
    })
  }

  Menu.setApplicationMenu(Menu.buildFromTemplate(menu));
};
...