Examine source code of Pcrypt

{
  "name": "Pcrypt",
  "version": "1.5.1",
  "manifest_version": 3,
  "author": "Benny Nissen",
  "content_security_policy": {
    "extension_pages": "default-src 'self' https://pcrypt.org https://app.pcrypt.com; script-src 'self'; object-src; img-src 'self' data: blob:;"
  },
  "description": "Handle your username and password credentials for all web pages.",
  "homepage_url": "https://pcrypt.org",
  "icons": {
    "16": "icons/key_icon16.png",
    "48": "icons/key_icon48.png",
    "128": "icons/key_icon128.png"
  },
  "options_ui": {
    "page": "src/browser_action/options.html",
    "open_in_tab": true
  },
  "default_locale": "en",
  "background": {
    "scripts": [
      "js/lib/pcrypt.config.js",
      "js/lib/pcrypt.config.loc.js",
      "js/lib/jserror/jserror.js",
      "js/lib/lang/languagedb.js",
      "js/lib/pcrypt.js",
      "js/lib/pcrypt.encrypt.js",
      "js/lib/pcryptapi.js",
      "js/lib/other/prototypes.js",
      "js/lib/other/php.js",
      "js/lib/forge.min.js",
      "js/lib/elliptic.min.js",
      "js/lib/srp6a/thinbus-srp-config.js",
      "js/lib/srp6a/thinbus-srp6a-sha256-versioned.js",
      "js/pcrypt_extension.js",
      "js/pcrypt_shared.js",
      "src/bg/background.js"
    ]
  },
  "action": {
    "default_icon": {
      "16": "icons/key_icon16.png",
      "48": "icons/key_icon48.png",
      "128": "icons/key_icon128.png"
    },
    "default_title": "Pcrypt",
    "default_popup": "src/browser_action/popup.html"
  },
  "permissions": [
    "notifications",
    "geolocation",
    "storage",
    "clipboardWrite",
    "tabs"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/inject/inject.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/chevron-left.svg",
        "icons/eye.svg",
        "icons/key.svg",
        "icons/key_icon.png",
        "icons/link.svg",
        "icons/settings.svg",
        "icons/settings_black.svg",
        "icons/user.svg"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{911093af-b410-44b2-97b9-b8f008ccfd28}"
    }
  }
}