docs: public ScaleLevel level(int minMarkers, int maxMarkers)
      {
          Iterator<ScaleLevel> iterator = scale.iterator(min, max);
          ScaleLevel level = iterator.next();
          ScaleLevel prev = null;
          while (iterator.hasNext() && minMarkers > level.count(min, max))
          {
              prev = level;
              level = iterator.next();
          }
          if (maxMarkers < level.count(min, max))
          {
              return prev;
          }
          else
          {
              return level;
          }
      }