private JComponent buildOverviewComponent() {
		if (overviewProviders.isEmpty()) {
			return null;
		}
		JPanel rightPanel = new JPanel(new HorizontalLayout(0));
		for (OverviewProvider overviewProvider : overviewProviders) {
			rightPanel.add(overviewProvider.getComponent());
		}
		return rightPanel;
	}
Adds the MarginProvider to this panel

@param provider the MarginProvider that will provide components to display in this panel's
           left margin area.
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/listingpanel/ListingPanel.java