appstore-screenshot-validatorlisted

# App Store Screenshot Validator Prepare screenshots for App Store Connect. Do not hard-code Apple size tables here; `asc screenshots sizes` is the source of truth. ## Source of Truth ```bash asc screenshots sizes --output table asc screenshots sizes --all --output table ``` Validate locally before upload: ```bash asc screenshots validate --path "./screenshots/iphone" --device-type "IPHONE_65" --output table asc screenshots validate --path "./screenshots/ipad" --device-type "IPAD_PRO_3GEN_129" --output table ``` Common anchors: `IPHONE_65` and `IPAD_PRO_3GEN_129`. Use `--all` for other iPhone sizes, Apple TV, Mac, Vision Pro, iMessage, or Watch. ## Workflow 1. Sanitize filenames when screenshots contain hidden Unicode spaces: ```bash python3 -c "import os for f in os.listdir('.'): clean = f.replace('\u202f', ' ') if f != clean: os.rename(f, clean) print(f'Renamed: {clean}')" ``` 2. Inspect size/alpha/color: ```bash sips -g pixelWidth -g pixelHeight -g hasAlpha -g space screenshot.png ``` 3. Strip alpha when needed; App Store Connect rejects alpha: ```bash sips -s format jpeg input.png --out /tmp/asc-screenshot-no-alpha.jpg sips -s format png /tmp/asc-screenshot-no-alpha.jpg --out output.png rm /tmp/asc-screenshot-no-alpha.jpg ``` 4. Resize only after choosing a target from `asc screenshots sizes --all`; `sips -z` takes height then width: ```bash mkdir -p resized for f in *.png; do