private Component buildButtonPanel() {
		JPanel panel = new JPanel(new BorderLayout());
		panel.setBorder(BorderFactory.createEmptyBorder(0, 10, 0, 10));
		return panel;
	}
Construct a new ExporterDialog for exporting a program, optionally only exported a
selected region.

@param graph the graph to save
@param exporters the list of known exporters
Ghidra/Features/GraphServices/src/main/java/ghidra/graph/export/GraphExporterDialog.java