Examine source code of search-jisho5

{
  "manifest_version": 2,
  "name": "search-jisho",
  "description": "Search ",
  "version": "1.1",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "94.0",
      "id": "{1f5db39a-9fea-4c25-a908-eb505d066f43}"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "menus",
    "search"
  ],
  "icons": {
    "16": "icons/page-16.png",
    "32": "icons/page-32.png",
    "48": "icons/page-48.png"
  }
}