Examine source code of wikiswitch

{
  "background": {
    "scripts": [
      "src/background.js"
    ],
    "type": "module"
  },
  "icons": {
    "32": "icon_32.png",
    "64": "icon_64.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_security_policy": {
    "extension_pages": "default-src 'self'; connect-src https://*.wikipedia.org"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "dev@wikiswitch.net"
    }
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "description": "Quickly see Wikipedia page title in different languages by right clicking a Wikipedia link",
  "developer": {
    "name": "Colin Delhalle",
    "url": "https://github.com/colin-delhalle/wikiswitch"
  },
  "manifest_version": 3,
  "name": "wikiswitch",
  "permissions": [
    "contextMenus",
    "storage"
  ],
  "version": "1.0.0"
}