@Override
	public void setNavigatable(Navigatable navigatable) {
		navigationPanel.setNavigatable(navigatable);
	}
The provider which renders the overview margin, usually placed outside the scrollbar to the right
of lisitng {@link FieldPanel}s.

<p>
These are managed by a {@link MarkerManager}. Obtain one via
{@link MarkerService#createOverviewProvider()}.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/marker/MarkerOverviewProvider.java