docs: public double getPercentage(T style)
      {
          int scnt = 0;
          int allcnt = 0;
          for (Map.Entry<T, Integer> entry : getAll().entrySet())
          {
              if (entry.getKey().equals(style))
                  scnt = entry.getValue();
              allcnt += entry.getValue();
          }
          return scnt / (double) allcnt;
      }