@Override
		public Component getListCellRendererComponent(JList<? extends String> list, String value,
				int index, boolean isSelected, boolean cellHasFocus) {
			super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
			boolean pathOK = new File(value).canRead();
			if (!pathOK) {
				setForeground(getErrorForegroundColor(isSelected));
			}

			return this;
		}
ListCellRenderer that renders the path values in the list,
coloring paths that are no longer readable in red.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/EditPluginPathDialog.java