Examine source code of CloudWarning

{
  "manifest_version": 3,
  "name": "CloudWarning",
  "version": "1.2",
  "description": "Displays a warning icon when a page is served via Cloudflare.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "action": {
    "default_title": "Cloudflare warning enabled",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/icon-48.png",
        "icons/icon-96.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "cloudflare-warning@example.com",
      "strict_min_version": "110.0"
    }
  }
}