private void installRootPane(JFrame frame) {
		Component oldGlassPane = frame.getGlassPane();
		if (!(oldGlassPane instanceof GGlassPane)) {
			GGlassPane gGlassPane = new GGlassPane();
			frame.setGlassPane(gGlassPane);
			gGlassPane.setVisible(true);
		}
	}
Create zoom in/out buttons on the default help window toolbar.
@param jHelp the java help object used to retrieve the help components
Ghidra/Framework/Help/src/main/java/help/GHelpBroker.java