private JPanel createTreePanel(boolean isIncoming, GTree tree) {
		JPanel panel = new JPanel(new BorderLayout());

		panel.add(new GLabel(isIncoming ? "Incoming" : "Outgoing"), BorderLayout.NORTH);
		panel.add(tree, BorderLayout.CENTER);

		return panel;
	}
A variable used to restrict open-ended operations, like expanding all nodes or filtering.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/calltree/CallTreeProvider.java