// similarity = e.g. 0.99f
static FoundImg rgbRawSingleImageSearch_multiplePatterns(RGBImage big, L<RGBImage> patterns, float similarity) {
  FoundImg found = null;
  for (RGBImage pat : patterns) {
    FoundImg found2 = first(rgbRawImageSearch_quick(big, pat, similarity, 1));
    if (found2 != null) {
      found = found2;
      similarity = found.sim;
    }
  }
  ret found;
}