private boolean isModalWindow(Window window) {
		if (window instanceof Dialog) {
			Dialog dialog = (Dialog) window;
			if (dialog.isModal()) {
				return true;
			}
		}
		return false;
	}
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