Examine source code of MandarinSpot Annotations

{
  "manifest_version": 3,
  "name": "MandarinSpot Pop-up Annotations",
  "browser_specific_settings": {
    "gecko": {
      "id": "mandarinspot@mandarinspot.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "version": "0.1.11",
  "description": "Mouseover Chinese dictionary with Pinyin and English definitions (offline)",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.bundle.js"
      ],
      "run_at": "document_end"
    }
  ],
  "action": {
    "default_popup": "popup.html"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "dictionary-*.json",
        "dictionary-chunks.json",
        "styles.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}