Examine source code of Simple Redirect

{
  "description": "Simply redirect all requests from one url to another.",
  "manifest_version": 2,
  "name": "Simple Redirect",
  "author": "Hari Saksena",
  "version": "1.7.1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{51e8a34c-5738-43e8-aa4a-a0eddf5d7922}",
      "strict_min_version": "57.0"
    }
  },
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "storage",
    "notifications"
  ],
  "background": {
    "scripts": [
      "background/listener.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "48": "icons/icon.svg",
      "96": "icons/icon.svg"
    },
    "default_title": "Simple Redirect",
    "default_popup": "ui/popup.html",
    "browser_style": true
  },
  "options_ui": {
    "page": "ui/settings.html",
    "browser_style": true
  },
  "developer": {
    "name": "Hari Saksena"
  },
  "homepage_url": "https://gitlab.com/Antiquete/simple-redirect"
}