Examine source code of Old Reddit Switch

{
  "manifest_version": 3,
  "name": "Old Reddit Switch",
  "version": "0.1.5",
  "description": "One‑click switcher: instantly load the classic old.reddit.com interface on every Reddit page for a faster load. 100% private - no personal data is collected by this extension.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage",
    "notifications"
  ],
  "host_permissions": [
    "*://reddit.com/*",
    "*://*.reddit.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "switch@old-reddit",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_title": "Toggle Switch for Old Reddit",
    "default_icon": {
      "16": "icons/off.svg",
      "32": "icons/off.svg",
      "48": "icons/off.svg",
      "128": "icons/off.svg"
    }
  },
  "icons": {
    "16": "icons/on.svg",
    "48": "icons/on.svg",
    "128": "icons/on.svg"
  }
}