This question already has an answer here:
System tray icons do not appear in Wingpanel for either nodewebkit applications that use the built in NW.js trayicon library, or Java applications that use
SystemTray.isSupported(), returns false in elementary OS, presumably the same is true for the NW.js library.
Is this something that can be worked around? If not, are there any plans to support these libraries for system tray icons?
n.b. The only reference to this I could find after much searching was this question over on Stackoverflow which has no answers (could do with better tagging, perhaps).