Examine source code of Gmail Attachment Bulk Download

{
  "manifest_version": 3,
  "name": "Gmail Attachment Bulk Downloader",
  "version": "1.0.1",
  "description": "Bulk-download attachments from selected Gmail messages with a read-only workflow. Supports up to 100 selected emails and separate ZIPs for messages with multiple attachments.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://mail.google.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_title": "Gmail Attachment Bulk Downloader",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "gmail-attachment-bulk-downloader@riteshextensions",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}