Site-owner manual Chrome exports versus local reproduction.
MANUAL exports: manual/on-green.ico, manual/trans-circle.ico, manual/white-bg.ico.
The site owner performed these browser conversions; the AI did not automate them.
LOCAL exports: assets/opaque-green.ico, assets/transparent-circle.ico, assets/white-flattened.ico.
Original source PNGs: assets/opaque-green.png, assets/transparent-circle.png, assets/white-flattened.png.
Run: python -m pip install pillow; python compare-manual.py.
The existing decode_ico.py reads the actual directory entries and PNG payloads.
comparison-manual/comparison.json and comparison.csv include both raw offsets/lengths and manual-minus-local differences.
Each per-frame diff CSV contains every differing RGBA pixel with local, manual and signed channel differences.
Full decoded pixel CSV.gz and extracted PNGs are saved for both runs.
RGBA differences count stored values, including RGB beneath zero alpha; they do not by themselves establish a visible fringe.
Local reproductions use the downloaded site module plus @napi-rs/canvas 1.0.13; they are not browser exports.
No article or new evidence files were published in this task.
