code: public BufferedImage getImage (String rset, String path, Colorization[] zations)
      {
          if (StringUtil.isBlank(path)) {
              String errmsg = "Invalid image path [rset=" + rset + ", path=" + path + "]";
              throw new IllegalArgumentException(errmsg);
          }
          return getImage(getImageKey(rset, path), zations);
      }
docs: Like {@link #getImage(String,String)} but the specified colorizations are applied to the
  image before it is returned.