Examine source code of OptMeowt

{
  "name": "OptMeowt",
  "author": "privacy-tech-lab",
  "version": "6.2.0",
  "description": "OptMeowt allows Web users to make use of their rights to opt out from the sale and sharing of personal data",
  "permissions": [
    "webRequestBlocking",
    "declarativeNetRequest",
    "webRequest",
    "webNavigation",
    "storage",
    "activeTab",
    "tabs",
    "scripting"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "universal_GPC",
        "enabled": true,
        "path": "rules/universal_gpc_rules.json"
      },
      {
        "id": "GPC_exceptions",
        "enabled": true,
        "path": "rules/gpc_exceptions_rules.json"
      }
    ]
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "128": "assets/face-icons/icon128-face-circle.png"
  },
  "action": {
    "default_title": "OptMeowt",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-scripts/contentScript.js"
      ],
      "run_at": "document_start"
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background.bundle.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "content-scripts/injection/gpc-dom.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "manifest_version": 3,
  "incognito": "spanning",
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7f22397f-fb61-47e2-9e4b-4ddd98faa275}"
    }
  }
}