@Override
			public Component getTableCellRendererComponent(GTableCellRenderingData data) {

				JLabel renderer = (JLabel) super.getTableCellRendererComponent(data);

				Object value = data.getValue();
				int column = data.getColumnViewIndex();

				if (column == PathManagerModel.COLUMN_PATH) {
					Path path = (Path) value;
					if (!isValidPath(path)) {
						renderer.setForeground(getErrorForegroundColor(data.isSelected()));
					}
				}
				return renderer;
			}
Clear the paths in the table.
Ghidra/Framework/Docking/src/main/java/docking/widgets/pathmanager/PathManager.java