Examine source code of Auto Refresh Agent

{
  "manifest_version": 3,
  "name": "Auto Refresh Agent",
  "version": "1.2",
  "description": "Dark philosophical auto refresh extension with website themes.",
  "permissions": [
    "tabs",
    "storage",
    "scripting"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "autorefreshagent@example.com",
      "strict_min_version": "109.0"
    }
  }
}