Examine source code of Recipe Clip

{
  "manifest_version": 2,
  "name": "Recipe Clip",
  "version": "0.2.3",
  "description": "Clip a recipe from any page into a clean card and print it.",
  "browser_action": {
    "default_title": "Recipe Clip",
    "default_popup": "pages/popup.html",
    "default_area": "navbar",
    "default_icon": {
      "16": "assets/icon-16.png",
      "32": "assets/icon-32.png",
      "48": "assets/icon-48.png"
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "<all_urls>"
  ],
  "icons": {
    "16": "assets/icon-16.png",
    "32": "assets/icon-32.png",
    "48": "assets/icon-48.png",
    "128": "assets/icon-128.png"
  },
  "background": {
    "scripts": [
      "src/background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "recipe-clip@moose-sc.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}