The Marvel Styleguide is Marvel's central, live inventory of UI components, brand guidelines, and code snippets, built on the exact same codebase as its live products so updates land in the styleguide first and trickle down from there.
Because it shares its codebase directly with production, the styleguide can't silently drift out of sync with the real product the way a separately maintained reference document often does.
Design system engineers studying a "styleguide as source of truth" architecture where the same code powers both documentation and the live product.
It's explicitly maintained as a living document rather than a one-time deliverable, worth checking for recent updates before assuming any given pattern is current.
A living inventory of UI components, patterns, and brand assets.
