svoid ocr_unpackGlyphTeachLogToScreenClipsDir() {
  for (S s : scanLog(glyphTeachLog())) {
    s = dropLeadingSquareBracketStuff(s); // drop date
    S md5 = dropPrefixOrNull("Image ", beforeColon(s); // image md5
    File imgFile = newFile(screenClipsDir(), md5 + ".png");
    if (!imgFile.exists()) continue with print("Image not found, skipping: " + imgFile);
    saveTextFileIfDifferentVerbose(replaceExtension(imgFile, ".line"), afterColon(s));
  }
}