code: public List<String> getOverviewMetaKeywords(String title, String docTitle) {
           List<String> result = new ArrayList<>(1);
          if (config.keywords) {
              String windowOverview = config.getText(title);
              if (docTitle.length() > 0) {
                  result.add(windowOverview + ", " + docTitle);
              } else {
                  result.add(windowOverview);
              }
          }
          return result;
      }
docs: Get the overview keywords.