static EyebrowFinder1 defaultEyebrowFinder() {
  EyebrowFinder1 finder = unstructFileOpt(javaxDataDir("Eyebrow Finder/full-finder.struct"));
  if (finder == null)
    finder = unstruct(mL_raw("Demo Eyebrow Finder"));
  finder.faceFinder = defaultFaceFinderByPictures();
  ret finder;
}