{
  "schemaVersion": 1,
  "name": "Signal / Design system",
  "audience": "A compact control room for service owners. Inspect operational work, assign review and acknowledge records locally.",
  "atmosphere": "Compact teal operations surfaces, table-first hierarchy and square geometry.",
  "principles": "Use named semantic roles, clear typographic hierarchy, purposeful spacing and explicit recovery states. Keep light and dark themes equally usable; reserve saturated color for actions and feedback.",
  "font": "system-sans",
  "density": "compact",
  "themes": [
    {
      "id": "paper",
      "name": "Terminal",
      "description": "Compact teal operations surfaces, table-first hierarchy and square geometry.",
      "colors": {
        "canvas": "#101e22",
        "surface": "#182a30",
        "ink": "#e5f5f4",
        "muted": "#adc9ca",
        "primary": "#8ce5d0",
        "on-primary": "#123b35",
        "border": "#739c9d",
        "success": "#234c35",
        "on-success": "#d2f4d1",
        "danger": "#542a24",
        "on-danger": "#ffd9cc",
        "focus": "{primary}"
      }
    },
    {
      "id": "midnight",
      "name": "Day shift",
      "description": "Compact teal operations surfaces, table-first hierarchy and square geometry.",
      "colors": {
        "canvas": "#edf5f4",
        "surface": "#ffffff",
        "ink": "#173633",
        "muted": "#4a6965",
        "primary": "#186657",
        "on-primary": "#ffffff",
        "border": "#73958f",
        "success": "#e2efdf",
        "on-success": "#24452e",
        "danger": "#fbe0d9",
        "on-danger": "#862f25",
        "focus": "{primary}"
      }
    }
  ],
  "scales": {
    "spacing": [
      4,
      8,
      12,
      16,
      24,
      32,
      48,
      64
    ],
    "radius": [
      0,
      2,
      4
    ],
    "type": {
      "base": 14,
      "ratio": 1.25,
      "steps": 6
    },
    "motion": {
      "fast": 120,
      "normal": 220,
      "slow": 400
    }
  },
  "app": {
    "brand": "Signal",
    "profile": "operations",
    "title": "Every signal. A clear next action.",
    "subtitle": "A compact control room for service owners. Inspect operational work, assign review and acknowledge records locally.",
    "eyebrow": "OPERATIONS / REVIEW WINDOW 09:00",
    "items": [
      {
        "title": "Checkout API",
        "category": "Payments",
        "owner": "D. Kim",
        "status": "Review",
        "detail": "Review the supplied retry policy and confirm the owner before acknowledging this work.",
        "progress": 80
      },
      {
        "title": "Asset delivery",
        "category": "Media",
        "owner": "R. Patel",
        "status": "Active",
        "detail": "Inspect cache headers and delivery checks against the reviewed runbook.",
        "progress": 60
      },
      {
        "title": "Identity gateway",
        "category": "Access",
        "owner": "S. Wong",
        "status": "Done",
        "detail": "The supplied checklist has been reviewed. Confirm target integration separately.",
        "progress": 100
      },
      {
        "title": "Search index",
        "category": "Discovery",
        "owner": "J. Park",
        "status": "Planned",
        "detail": "Prepare a bounded re-index plan and a rollback checklist.",
        "progress": 10
      },
      {
        "title": "Mail queue",
        "category": "Messaging",
        "owner": "D. Kim",
        "status": "Review",
        "detail": "Review the local queue fixture and recovery note; no real messages are sent.",
        "progress": 75
      },
      {
        "title": "Release monitor",
        "category": "Delivery",
        "owner": "R. Patel",
        "status": "Active",
        "detail": "Reconcile the deployed revision with its source and health-check evidence.",
        "progress": 40
      }
    ]
  },
  "demo": true
}