Examine source code of Twitter Improvements

{
  "manifest_version": 2,
  "name": "Twitter Improvements",
  "version": "1.1.0.6",
  "author": "usy",
  "homepage_url": "https://github.com/usyless/twitter-improvements",
  "description": "Various helpful twitter improvements",
  "icons": {
    "96": "icons/icon-96.png"
  },
  "browser_action": {
    "default_icon": "icons/icon-96.png",
    "default_title": "Image Reverser",
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "contextMenus",
    "downloads",
    "clipboardWrite",
    "storage",
    "webRequest",
    "https://x.com/*",
    "https://video.twimg.com/*",
    "https://pbs.twimg.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://x.com/*"
      ],
      "js": [
        "twitter_improvements.js"
      ],
      "css": [
        "twitter_improvements.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "settings/settings.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{49f6525f-921e-4ff0-804d-a85f95ad3233}"
    }
  }
}