Examine source code of CacheVote

{
  "manifest_version": 2,
  "name": "CacheVote",
  "version": "0.0.8",
  "description": "__MSG_extDesc__",
  "default_locale": "en",
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "64": "images/icon64.png",
    "128": "images/icon128.png"
  },
  "author": "Fabian Schedler",
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_action": {
    "default_popup": "src/popup/popup.html"
  },
  "homepage_url": "https://cachevote.org",
  "content_scripts": [
    {
      "js": [
        "src/helpers/globals.js",
        "src/helpers/serverErrors.js",
        "src/helpers/settings.js",
        "src/content/cacheVoteSettings.js",
        "src/content/main.js"
      ],
      "css": [
        "styles/main.css"
      ],
      "matches": [
        "https://www.geocaching.com/*"
      ],
      "run_at": "document_end"
    },
    {
      "js": [
        "src/content/gcDetails.js"
      ],
      "matches": [
        "https://www.geocaching.com/geocache/GC*",
        "https://www.geocaching.com/seek/cache_details.aspx?*wp=GC*"
      ],
      "run_at": "document_end"
    },
    {
      "js": [
        "src/content/gcLog.js"
      ],
      "matches": [
        "https://www.geocaching.com/play/geocache/gc*/log",
        "https://www.geocaching.com/seek/log.aspx*"
      ],
      "run_at": "document_end"
    },
    {
      "js": [
        "src/content/gcSearchList.js"
      ],
      "matches": [
        "https://www.geocaching.com/play/search?*"
      ],
      "run_at": "document_end"
    },
    {
      "js": [
        "src/content/ownedList.js"
      ],
      "matches": [
        "https://www.geocaching.com/play/owner/published"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "src/helpers/globals.js",
      "src/helpers/serverErrors.js",
      "src/background/templates.js",
      "src/background/background.js"
    ]
  },
  "web_accessible_resources": [
    "images/icon32.png"
  ],
  "permissions": [
    "cookies",
    "storage",
    "https://www.geocaching.com/*",
    "https://api.cachevote.org/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{29f81a95-1623-469c-be2d-fd856989f826}"
    }
  }
}