Original PickImageColors experiment, October 7, 2026. JPEG image payloads are identical; only inserted EXIF Orientation tags differ. The PNGs are controls saved from Pillow-decoded JPEG pixels after applying the respective orientation. Their values are not the pre-compression design fills. Run check-orientation.py with Python and Pillow for file-level checks. For the browser test upload each file to https://pickimagecolors.com/ and read the coordinates in live-picker-observations.json. Do not sample the diagrams. Browser results describe one Chrome session, not all decoders.
