docs: protected boolean isMultimedia(File file) {
          //noinspection SimplifiableIfStatement
          if (isDir(file)) {
              return false;
          }
  
          String path = file.getPath().toLowerCase();
          for (String ext : MULTIMEDIA_EXTENSIONS) {
              if (path.endsWith(ext)) {
                  return true;
              }
          }
  
          return false;
      }