Examine source code of Cryptor

{
  "manifest_version": 3,
  "name": "Cryptor",
  "version": "1.0.0",
  "description": "Encrypt and decrypt selected text using Binary, Hex, Base64, Decimal, ROT, Morse, Vigenère, and XOR.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    },
    "default_title": "Cryptor"
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Shift+C",
        "mac": "Command+Shift+C"
      },
      "description": "Open Cryptor"
    },
    "encrypt": {
      "suggested_key": {
        "default": "Alt+Shift+E",
        "mac": "Command+Shift+E"
      },
      "description": "Encrypt selected text"
    },
    "decrypt": {
      "suggested_key": {
        "default": "Alt+Shift+D",
        "mac": "Command+Shift+D"
      },
      "description": "Decrypt selected text"
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage",
    "contextMenus"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "popup/popup.html",
        "popup/popup.css",
        "popup/popup.js",
        "shared/ciphers.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "background": {
    "scripts": [
      "shared/ciphers.js",
      "background/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "cryptor@maziko",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}