Examine source code of Hash It Out

{
  "manifest_version": 3,
  "name": "Hash It Out",
  "version": "2.0",
  "description": "Stateless, deterministic password generator. Derives unique passwords from a master phrase and the current domain using PBKDF2-SHA256 (600k iterations). Nothing stored, clipboard auto-clears.",
  "permissions": [
    "activeTab",
    "storage",
    "clipboardWrite"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_title": "Hash It Out",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    }
  },
  "commands": {
    "generate-password": {
      "suggested_key": {
        "default": "Ctrl+Shift+V",
        "mac": "Command+Shift+V"
      },
      "description": "Generate password for current site"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b9c3e2a1-7f4d-4e8a-9b1c-d5f6a2e3c4b7}",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}