Examine source code of foxcade

{
  "manifest_version": 3,
  "name": "foxcade",
  "version": "0.1.0",
  "description": "Turn a prompt into a playable mini-game — generated on your device, private and free. 15+ games, a daily challenge, and 12 themes.",
  "browser_specific_settings": {
    "gecko": {
      "id": "foxcade@pooriaarab",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "alarms"
  ],
  "optional_permissions": [
    "trialML",
    "notifications",
    "tabs",
    "sessions"
  ],
  "_comment_network": "The 'worldmap' game (src/games/citymap-real.js) is the ONLY game that touches the network: it renders REAL vector map tiles from OpenFreeMap (https://openfreemap.org, free, no API key) with MapLibre GL (WebGL, 3D buildings + road geometry). MapLibre's default build runs its tile worker from a blob: URL, which the extension CSP blocks — so we ship the CSP build whose worker is a SEPARATE FILE (vendor/maplibre-gl-csp-worker.js) loaded same-origin via setWorkerUrl(runtime.getURL(...)), satisfying worker-src 'self'. Hence NO blob: in script-src; 'wasm-unsafe-eval' is for MapLibre's WASM. Every other game is fully local.",
  "host_permissions": [
    "https://tiles.openfreemap.org/*",
    "https://*.openfreemap.org/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; worker-src 'self'; object-src 'self'; connect-src 'self' https://tiles.openfreemap.org https://*.openfreemap.org; img-src 'self' data: blob: https://tiles.openfreemap.org https://*.openfreemap.org"
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Open foxcade",
    "default_icon": {
      "16": "assets/icon-16.png",
      "32": "assets/icon-32.png",
      "48": "assets/icon-48.png"
    }
  },
  "icons": {
    "16": "assets/icon-16.png",
    "32": "assets/icon-32.png",
    "48": "assets/icon-48.png",
    "96": "assets/icon-96.png",
    "128": "assets/icon-128.png"
  }
}