{
  "$generatedFrom": "v6.1-system.json",
  "$doNotEditByHand": true,
  "version": "6.1.0",
  "edition": "Edition 06.1",
  "date": "2026-08-06",
  "canonicalSource": "v6.1-system.json",
  "guide": "vcubed Brand Guidelines v6.1.dc.html",
  "active": [
    {
      "file": "assets/v61-lockup-horizontal-light.svg",
      "use": "Master lockup. Dark grounds. Default everywhere.",
      "kind": "lockup"
    },
    {
      "file": "assets/v61-lockup-horizontal-dark.svg",
      "use": "Master lockup. Parchment and white grounds. All print.",
      "kind": "lockup"
    },
    {
      "file": "assets/v61-lockup-stacked-light.svg",
      "use": "Stacked, dark grounds. Square and portrait formats.",
      "kind": "lockup"
    },
    {
      "file": "assets/v61-lockup-stacked-dark.svg",
      "use": "Stacked, light grounds. Portrait print, event boards.",
      "kind": "lockup"
    },
    {
      "file": "assets/v61-lockup-oneink-white.svg",
      "use": "One ink, white. Photography, single-ink print.",
      "kind": "lockup"
    },
    {
      "file": "assets/v61-lockup-oneink-black.svg",
      "use": "One ink, black. Procurement portals, fax, engraving.",
      "kind": "lockup"
    },
    {
      "file": "assets/v61-cube-display-light.svg",
      "use": "Display cube, dark grounds. 24px and above.",
      "kind": "cube"
    },
    {
      "file": "assets/v61-cube-display-dark.svg",
      "use": "Display cube, light grounds. 24px and above.",
      "kind": "cube"
    },
    {
      "file": "assets/v61-cube-small-light.svg",
      "use": "Optical small-size cube, dark grounds. 16–23px.",
      "kind": "cube"
    },
    {
      "file": "assets/v61-cube-small-dark.svg",
      "use": "Optical small-size cube, light grounds. 16–23px.",
      "kind": "cube"
    },
    {
      "file": "assets/v61-cube-oneink-black.svg",
      "use": "One-ink cube, black. Favicon master, etch, embroidery.",
      "kind": "cube"
    },
    {
      "file": "assets/v61-cube-oneink-white.svg",
      "use": "One-ink cube, white. Knockout on any dark ground.",
      "kind": "cube"
    },
    {
      "file": "assets/v61-cube-duotone.svg",
      "use": "Two-ink cube. Embroidery, sponsor strips, screen print.",
      "kind": "cube"
    },
    {
      "file": "assets/v61-wordmark-light.svg",
      "use": "Wordmark alone, dark grounds. Below 160px.",
      "kind": "wordmark"
    },
    {
      "file": "assets/v61-wordmark-dark.svg",
      "use": "Wordmark alone, light grounds.",
      "kind": "wordmark"
    },
    {
      "file": "assets/v61-favicon.svg",
      "use": "Favicon. One-ink cube, tuned to the pixel grid.",
      "kind": "favicon"
    },
    {
      "file": "v6.1-system.json",
      "use": "Canonical system. Everything else derives from this file.",
      "kind": "data"
    },
    {
      "file": "v6.1-tokens.json",
      "use": "Derived token export.",
      "kind": "data"
    },
    {
      "file": "v6.1-manifest.json",
      "use": "Derived asset manifest.",
      "kind": "data"
    },
    {
      "file": "validate-v61.js",
      "use": "Consistency check. Run before any release.",
      "kind": "tool"
    }
  ],
  "archived": [
    {
      "file": "assets/vcubed-lockup-light.svg",
      "note": "V³ lightning symbol. Deprecated at Edition 06.",
      "distributable": false
    },
    {
      "file": "assets/vcubed-lockup-dark.svg",
      "note": "V³ lightning symbol. Deprecated at Edition 06.",
      "distributable": false
    },
    {
      "file": "assets/vcubed-lockup-mono-white.svg",
      "note": "V³ lightning symbol. Deprecated at Edition 06.",
      "distributable": false
    },
    {
      "file": "assets/vcubed-wordmark-dark.svg",
      "note": "Superseded at Edition 06.",
      "distributable": false
    },
    {
      "file": "assets/vcubed-wordmark-white.svg",
      "note": "Superseded at Edition 06.",
      "distributable": false
    },
    {
      "file": "assets/src-lockup-mono.svg",
      "note": "Working file. Never distributed.",
      "distributable": false
    },
    {
      "file": "assets/src-lockup-white.svg",
      "note": "Working file. Never distributed.",
      "distributable": false
    },
    {
      "file": "assets/src-wordmark.svg",
      "note": "Working file. Never distributed.",
      "distributable": false
    },
    {
      "file": "assets/v6-*.svg",
      "note": "Edition 06 assets. Superseded by v61-*; retained for reference only.",
      "distributable": false
    }
  ],
  "changelog": [
    {
      "title": "Canonical source introduced",
      "detail": "v6.1-system.json now owns every value. The token file, manifest and guide specimens derive from it, and validate-v61.js fails the build on drift."
    },
    {
      "title": "Sector colour replaced by workstream colour",
      "detail": "Colour now answers which part of an engagement a reader is in, not what colour a whole document is. Multi-workstream documents use several families, one dominant per section."
    },
    {
      "title": "One-field rule rewritten",
      "detail": "One dominant field per page or sequence, Sapphire by default, rather than one field per document."
    },
    {
      "title": "Colour decision tree added",
      "detail": "Five questions, ending in do not add colour."
    },
    {
      "title": "Document colour matrix added",
      "detail": "Seven document types, each with a core, workstream and status rule."
    },
    {
      "title": "Cube split into three cuts",
      "detail": "Display at 24px and above, an optically redrawn cube for 16–23px, and a true one-ink cube with no opacity."
    },
    {
      "title": "Master mark separated from the device",
      "detail": "The master mark is three clean planes with a level plate and a gap beneath it — no dividing lines. The nine-facet device stays the expressive form. Previously one drawing did both jobs and failed at 24px."
    },
    {
      "title": "Imagery system defined",
      "detail": "Three modes with subject, crop, framing, treatment, sequencing, captions, releases, alt text and low-light handling."
    },
    {
      "title": "Playfulness layered",
      "detail": "Continuous warmth from imagery, recurring marginal notes and construction marks, the assembly as the rare flagship."
    },
    {
      "title": "Motion no longer loops",
      "detail": "One play on entry at a 0.4 threshold, then hold. Replay on explicit action only."
    },
    {
      "title": "Mobile navigation replaced",
      "detail": "A compact current-section control with previous, next and a Contents disclosure, at 44px targets, instead of a wrapped link wall."
    },
    {
      "title": "Accessibility hardened",
      "detail": "lang, skip link, favicon link, scroll-margin, resolved ARIA, no label below 12px, twenty computed contrast pairs."
    },
    {
      "title": "Legacy component names retired",
      "detail": "V3 Mark Lift is now Cube Device. No active asset carries a V3 name."
    }
  ]
}