Examine source code of JeevanRekha Formatter

{
  "manifest_version": 2,
  "name": "JeevanRekha Pension Number Formatter",
  "version": "1.4",
  "description": "Formats pension and Aadhaar numbers on Kerala welfare pension website with license activation",
  "permissions": [
    "storage",
    "activeTab",
    "https://akshayaonline.in/smart/addon/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://welfarepension.lsgkerala.gov.in/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ]
    }
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jeevan-rekha-formatter@akshayaonline.in",
      "strict_min_version": "68.0"
    },
    "gecko_android": {
      "strict_min_version": "120.0"
    }
  }
}