String generateToolTip(MouseEvent event) {
		return markerPanel.generateToolTip(event);
	}
The provider which renders the marker margin, usually placed to the left of listing
{@link FieldPanel}s.

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