Examine source code of Web Scraper

{
  "manifest_version": 2,
  "name": "Element to Markdown",
  "version": "1.0",
  "description": "Convert selected webpage elements to Markdown",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "storage"
  ],
  "browser_action": {
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    },
    "default_title": "Element to Markdown",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "lib/turndown.js",
        "content_scripts/content.js"
      ],
      "css": [
        "content_scripts/content.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9f2e1457-c725-4128-8c30-99e38d1c089f}"
    }
  }
}