Examine source code of Contextual Wiktionary

{
  "name" : "Contextual Wiktionary",
  "description" : "A seamless Wiktionary integration for Firefox.",
  "version" : "1.5",
  "homepage_url" : "https://github.com/aesarab/contextual-wiktionary",
  "manifest_version" : 2 ,
  "browser_action" : {
    "default_title" : "Search Wiktionary",
    "default_popup" : "popup/popup.html",
    "browser_style": true,
    "theme_icons": [
      {
        "light": "resources/icons/WiktionaryLogoDark.svg",
        "dark": "resources/icons/WiktionaryLogoLight.svg",
        "size": 16
      },
      {
        "light": "resources/icons/WiktionaryLogoDark.svg",
        "dark": "resources/icons/WiktionaryLogoLight.svg",
        "size": 32
      },
      {
        "light": "resources/icons/WiktionaryLogoDark.svg",
        "dark": "resources/icons/WiktionaryLogoLight.svg",
        "size": 48
      },
      {
        "light": "resources/icons/WiktionaryLogoDark.svg",
        "dark": "resources/icons/WiktionaryLogoLight.svg",
        "size": 96
      }
    ]
  },
  "icons" : {
    "16" : "resources/icons/WiktionaryLogo.svg",
    "32" : "resources/icons/WiktionaryLogo.svg",
    "48" : "resources/icons/WiktionaryLogo.svg",
    "96" : "resources/icons/WiktionaryLogo.svg"
  },
  "background" : {
    "scripts" : [
      "options/webextensions-lib-configs/Configs.js" ,
      "options/defaultConfig.js" ,
      "bgScript.js" 
    ]
  },
  "commands" : {
    "define-shortcut": {
      "description" : "Define selection or open popup. Disabled by default, recommended binding is Ctrl+Alt+D"
    }
  },
  "permissions" : [
    "contextMenus" ,
    "https://en.wiktionary.org/api/rest_v1/page/definition/*" ,
    "storage" 
  ],
  "optional_permissions" : [
    "activeTab" ,
    "scripting" 
  ],
  "options_ui" : {
    "page": "options/options.html" ,
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "102.0",
      "id": "{d180b436-a655-4280-b44e-1fa6b8ae8cb9}"
    }
  }
}