Examine source code of Twitter Post Limiter

{
  "manifest_version": 2,
  "name": "Twitter Post Limiter",
  "version": "0.2",
  "description": "Number posts on the Twitter timeline and limit after a set number",
  "browser_specific_settings": {
    "gecko": {
      "id": "twitterlimiter@nielstron.de",
      "strict_min_version": "58.0"
    }
  },
  "permissions": [
    "storage",
    "*://twitter.com/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon48.png",
      "96": "icon96.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://twitter.com/home*",
        "*://x.com/home*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "48": "icon48.png",
    "96": "icon96.png"
  }
}