Examine source code of Superpowers for Twitter

{
  "author": "Clemens Teichmann",
  "description": "Mass follow, mass unfollow, mass like, mass unlike, mass retweet and mass unretweet on Twitter with powerful options.",
  "manifest_version": 3,
  "name": "Superpowers for Twitter",
  "homepage_url": "https://www.clemensteichmann.com/superpowers-for-twitter",
  "version": "89",
  "browser_specific_settings": {
    "gecko": {
      "id": "superpowers-for-twitter@clemensteichmann.com"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://x.com/*"
      ],
      "run_at": "document_end",
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "icons": {
    "16": "images/mass_follow_for_new_twitter16.png",
    "48": "images/mass_follow_for_new_twitter48.png",
    "128": "images/mass_follow_for_new_twitter128.png"
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "unlimitedStorage",
    "webRequest",
    "webRequestBlocking",
    "webRequestFilterResponse"
  ],
  "host_permissions": [
    "*://*.x.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}