Examine source code of Barcode Scanner Icon

{
  "manifest_version": 2,
  "name": "Barcode Scanner Icon",
  "version": "1.0",
  "description": "The barcode scanner icon is typically designed to represent the action of scanning a barcode – commonly used in point of sale software, warehouses, or inventory systems.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Click me!"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b0bff37d-2a37-48e8-9866-a71d071e17e8}"
    }
  }
}