Marcel is Carrefour's design system, the single source of truth for the retailer's digital identity across its website, mobile app, and in-store digital touchpoints in multiple countries.
It's explicitly multi-device, multi-brand, and multi-language at once, a useful reference for how one system stays consistent across very different markets and store formats rather than assuming a single locale.
Designers studying international retail design systems that have to hold brand consistency across many countries and both digital and physical touchpoints.
Documentation is maintained as a Figma library plus a code repository, so expect a browsable design reference rather than a directly installable package.
Carrefour's design system, unifying the experience across its digital platforms.