Examine source code of NepaliCalendar

{
  "manifest_version": 3,
  "name": "Nepali Calendar",
  "version": "1.0.0",
  "description": "A beautiful Nepali calendar extension with Bikram Sambat dates, holidays, and events",
  "permissions": [
    "storage",
    "activeTab",
    "contextMenus",
    "notifications"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Nepali Calendar",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/browser-polyfill.js",
        "scripts/nepali-calendar.js",
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*",
        "scripts/welcome.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "nepali-calendar@extension.com",
      "strict_min_version": "109.0"
    }
  }
}