The QR-decoder option doc was written on an offline machine with the
Maven coordinates and wrapper API flagged as from-memory. Verified
against Maven Central + the wrapper source: artifact is
io.github.zxing-cpp:android:3.1.1 (current release), Format.QR_CODE is
nested inside BarcodeReader (not a top-level BarcodeFormat), options are
a constructor-argument data class, and read(ImageProxy) handles the
Y-plane/cropRect/rotation itself. Sketch updated accordingly; the option
itself stays NOT-actioned pending the move-to-the-code decision trigger.
Dorian