Examine source code of Delivery tracking icon

{
  "manifest_version": 2,
  "name": "Delivery tracking icon",
  "version": "1.0",
  "description": "Delivery tracking icons are used to indicate real-time order tracking features or status – often found on e-commerce, courier, or food delivery apps.",
  "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": "{86f98fb5-d057-4782-8c83-99f4fcf2cc68}"
    }
  }
}