Examine source code of Redirect Reddit to Redlib

{
  "manifest_version": 2,
  "name": "Redirect Reddit to Redlib",
  "version": "1.0.0",
  "description": "Automatically redirect Reddit links to a privacy-friendly Redlib instance of your choice.",
  "author": "Samaksh Jain",
  "homepage_url": "https://github.com/samakshjain/reddit-redlib-redirect",
  "browser_specific_settings": {
    "gecko": {
      "id": "redlib-redirect@samakshjain",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://reddit.com/*",
    "*://*.reddit.com/*",
    "*://redd.it/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "19": "icons/icon19.png",
    "38": "icons/icon38.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_title": "Redlib Redirect Options",
    "default_icon": {
      "48": "icons/icon48.png"
    }
  }
}