Method done

code/src/java/pcgen/gui3/preloader/PCGenPreloader.java:101–105

indicates that preloading is done. splash screen should "go away"

()

	 * indicates that preloading is done. splash screen should "go away"
	 */
	public void done()
	{
		GuiAssertions.assertIsNotJavaFXThread();
		Platform.runLater(() -> primaryStage.close());
	}

	/**
	 * Primarily exists for testing.