main.js

const {app, BrowserWindow} = require('electron')
let mainWindow

// Create a new BrowserWindow when `app` is ready
function createWindow () {
  mainWindow = new BrowserWindow({
    width: 1000, height: 800,
    webPreferences: { nodeIntegration: true, contextIsolation: false },
    autoHideMenuBar: true,
    backgroundColor: '#111111',
    icon: __dirname + '/icons/icon.ico'
    // titleBarStyle: 'hidden',
    // frames: false
  })

  // Load index.html into the new BrowserWindow
  mainWindow.loadFile('index.html')

  // Open DevTools - Remove for PRODUCTION!
  // mainWindow.webContents.openDevTools();

  // Listen for window being closed
  mainWindow.on('closed',  () => {
    mainWindow = null
  })
}

// Electron `app` is ready
app.on('ready', createWindow)

// Quit when all windows are closed - (Not macOS - Darwin)
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') app.quit()
})

// When app icon is clicked and app is running, (macOS) recreate the BrowserWindow
app.on('activate', () => {
  if (mainWindow === null) createWindow()
})