Color Manifest Generator

Reads your Mahjong mat photos (from your 7 mat collections) and builds the color data file the widget needs. Runs entirely in this browser tab — nothing is sent anywhere except to your own store.

Store domain Storefront API access token Generate color manifest

After downloading: in Shopify admin, go to Online Store → Themes → your "Color-Match Widget (preview)" theme → Edit code → Assets → Add a new asset → upload this file. That's the last step.