Examine source code of Right Click Wiktionary

{
  "description": "Wiktionary in the context menu",
  "manifest_version": 2,
  "name": "Right Click Wiktionary",
  "version": "11.1",
  "homepage_url": "https://gitlab.com/losnappas/Context-menu-Wiktionary",
  "browser_action": {
    "default_title": "Wiktionary Popup",
    "default_popup": "popup/popup.html",
    "browser_style": true,
    "default_icon": "icon/220px-Wiktionary_logo_Diego_UFCG.png"
  },
  "icons": {
    "48": "icon/220px-Wiktionary_logo_Diego_UFCG.png"
  },
  "background": {
    "scripts": [
      "/options/webextensions-lib-configs/Configs.js",
      "common.js",
      "background.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "https://en.wiktionary.org/api/rest_v1/page/definition/*",
    "storage"
  ],
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  },
  "applications": {
    "gecko": {
      "strict_min_version": "57.0",
      "id": "{fccc7c8d-5a40-4644-bec3-59cd351cbd86}"
    }
  }
}