Examine source code of Trading icon

{
  "manifest_version": 2,
  "name": "Trading icon",
  "version": "1.0",
  "description": "The transaction symbol is commonly used in the context of finance, banking, e-wallets, or e-commerce. It represents the act of transferring money, paying, buying – selling, or exchanging between two parties.",
  "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": "{3006d3c2-2074-41a0-bffe-c60d00f450d1}"
    }
  }
}