Examine source code of World Heap

{
  "manifest_version": 3,
  "name": "World Heap",
  "version": "1.0",
  "description": "Extract text from your favorite news sites to augment your AI.",
  "browser_specific_settings": {
    "gecko": {
      "id": "worldheap@bazham.com",
      "strict_min_version": "109.0"
    }
  },
  "permissions": [
    "tabs",
    "scripting",
    "activeTab",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "readability.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}