I think this is possibly a bug (java viewer), or possibly a feature request :)
The functionality I'm looking for (perhaps it's there already...)
is: "a button that full screens it and stretches it to fit, so you use all of your desktop"
Currently if I click "Zoom to fit Window" then click "full screen" it doesn't do any stretching at all.
So...maybe another button "Stretch to fit window" or its like.
Sorry if this is a duplicate report.