• Electron version: 2.0.0-beta.7

• Operating system: Debian Linux 9 (stretch)

• Last known working Electron version: 1.8.x

Expected behavior

Tray icon should be rendered as expected

Actual behavior

Check out this: https://answers.microsoft.com/en-us/skype/forum/skype_linux-skype_startms-skype_installms/system-tray-icon-in-xfce/d3f162bf-0bbf-481b-90a1-f43cae9a86cc?messageId=07ac5b21-a4cd-43b6-a8b9-cc79fc3c6c54

How to reproduce

Install Skype for Linux 8.20.76.1 (insiders).
Haven't tried it in a simple Electron app, but should be easily reproducible if you have a tray icon set.