OS X Yosemite Dark Mode

[Simon Nash]

The new Dark Mode in OS X Yosemite causes problems for menu bar icons added
by SystemTray.add().  My application's icon is black on a transparent
background, which doesn't work well with Dark Mode.

I found this thread:

http://stackoverflow.com/questions/24623559/nsstatusitem-change-image-for-dark-tint

which recommends using a template image on NSStatusItem or NSStatusBarButton
or adding a "Template" suffix to the image file name.  Is this possible from
a Java application?  Alternatively, is it possible for a Java application to
discover that Dark Mode is enabled so that it can substitute a different icon?

Any suggestions for a solution would be much appreciated.

Simon