Examine source code of Discount search icon

{
  "manifest_version": 2,
  "name": "Discount search icon",
  "version": "1.0",
  "description": "The discount search icon is commonly seen on e-commerce websites, shopping apps, or product filtering tools.",
  "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": "{e3077345-ce2c-41f0-a0a8-e520fbe02eab}"
    }
  }
}