Examine source code of Hermes

{
  "manifest_version": 3,
  "name": "Hermes",
  "version": "2.0.2",
  "description": "End-to-end encrypted messaging using ECDH key exchange and AES-GCM encryption. Secure your online conversations.",
  "author": "Omar Criacci",
  "homepage_url": "https://github.com/omartrj/hermes-addon",
  "browser_specific_settings": {
    "gecko": {
      "id": "hermes@omarcriacci.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "clipboardWrite",
    "clipboardRead"
  ],
  "options_ui": {
    "page": "src/ui/options/options.html",
    "open_in_tab": true
  },
  "action": {
    "default_popup": "src/ui/popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  }
}