menu bar icon doesn't work with Yosemite dark's theme

[nrako]

It looks like the icon image in the menu bar is not set as template, therefore it wont be automatically changed into a white version by Yosemite.

See bellow I used the dropbox src tiff images to test and show the issue. (the 2nd is my app, the 3rd dropbox)

I found a link which seems to explain how to fix that:

// Load icon
var icon = NSImage(named: "statusIcon")

// Fixes dark mode
icon.setTemplate(true)

Tested on node-webkit v0.10.5
OSX 10.10 of course...

[nrako]

Some additional informations on setTemplate can be found here:
https://developer.apple.com/library/mac/documentation/Cocoa/Reference/ApplicationKit/Classes/NSImage_Class/index.html#//apple_ref/occ/instm/NSImage/setTemplate: