private MarkerSet getCursorMarkers() {
		// already created
		if (p2CursorMarkers != null) {
			return p2CursorMarkers;
		}

		p2CursorMarkers = markerManager.createPointMarker("Cursor", "Cursor Location",
			secondaryDiffProgram, MarkerService.CURSOR_PRIORITY, true, true, isHighlightCursorLine,
			cursorHighlightColor, CURSOR_LOC_ICON);

		return p2CursorMarkers;
	}
Reload the marked differences in the diff panel.
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/ProgramDiffPlugin.java