title: Cannot change Electron notification icon on left
body: <p>My application uses a separate hidden BrowserWindow to show a new notification.
  The notification has 2 icons. I cannot edit the electron icon on the left, while the icon on the right kan be edited just fine.</p>
  
  <p><a href="https://i.stack.imgur.com/X9t4O.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/X9t4O.png" alt="Notification"></a></p>
  
  <p>How can I change the left icon?</p>
  
  <p>I've tried changing the icon of the BrowserWindow and changing the icon of electron through the electron-packager.
  I've also changed the favicon icon of the page spawning the notification, but to no avail. </p>
  
  <p>I cannot find any other documentation regarding it even being possible to have 2 icons in a notification. By my knowledge it should be a native HTML5 Notification.</p>
  
  <p><strong>Platform:</strong> Mac OS X El Capitan</p>
  
  <p><strong>Electron version:</strong> 1.1.1</p>
  
  <p><strong>Code used in renderer Javascript:</strong></p>
  
  <pre><code>const electron = require('electron');
  const ipc = electron.ipcRenderer;
  
  var Notification = window.Notification || window.mozNotification || window.webkitNotification;
  
  require('electron').ipcRenderer.on('showNotification', (event, message) =&gt; {
    Notification.requestPermission();
    var notification = new Notification("New Notification found");
  });
  
  require('electron').ipcRenderer.on('showNotificationAmount', (event, message) =&gt; {
    Notification.requestPermission();
    var notification = new Notification("New Notifications found!", {icon: "http://orig07.deviantart.net/d754/f/2011/132/e/4/google_chrome_icon_yellow_by_cameronsagey-d3g75gy.png", body: message + " new notifications available for you!"});
  });
  </code></pre>
  
  <p><strong>Code used in Main.js:</strong></p>
  
  <pre><code>//Make hidden window, used for notifications
    hiddenNotificationBalloonWindow = new window({
        show: false,
        transparent: true,
        icon: nativeImage.createFromPath(__dirname + '/images/logowindowicon.png')
    });
    hiddenNotificationBalloonWindow.setRepresentedFilename(__dirname + '/images/logowindowicon.png');
    hiddenNotificationBalloonWindow.setDocumentEdited(true);
    hiddenNotificationBalloonWindow.loadURL("file://" + __dirname + "/windows/hiddenHTML5NotifyBalloonActivator.html");
  </code></pre>
  
  <p>Thanks for the help in advance!</p>