JavaFX: Undecorated Window

I am attempting to make a Windows PC Toast notification. Right now I am using a mixture of Swing and JavaFX because I did not find a way to make an undecorated window with FX. I would much prefer to only use JavaFX.

So, how can I make an undecorated window?

Edit: I have discovered that you can create a stage directly with new Stage(StageStyle.UNDECORATED).

Now all I need to know is how to initialize the toolkit so I can call my start(Stage stage) method in MyApplication. (which extends Application)

I usually call Application.launch(MyApplication.class, null), however that shields me from the creation of the Stage and initialization of the Toolkit.

So how can I do these things to allow me to use start(new Stage(StageStyle.UNDECORATED)) directly?