Examine source code of Sankhya

{
  "manifest_version": 3,
  "name": "Sankhya",
  "version": "1.6",
  "description": "Sankhya quickly shows the Indian word for a selected number.",
  "permissions": [],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "author": "Raj Nandan Sharma",
  "icons": {
    "16": "images/sankhya_logo16.png",
    "48": "images/sankhya_logo48.png",
    "128": "images/sankhya_logo128.png"
  },
  "action": {
    "default_popup": "home.html",
    "default_icon": {
      "16": "images/sankhya_logo16.png",
      "48": "images/sankhya_logo48.png",
      "128": "images/sankhya_logo128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "sankhya@frogment.com"
    }
  }
}