Examine source code of Archive icon

{
  "manifest_version": 2,
  "name": "Archive icon",
  "version": "1.0",
  "description": "Storage Icons Insert these icons in documents, presentations or function descriptions on websites/apps to represent storage of goods, data, file...",
  "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": "{e65815de-2242-43e9-bcd3-59d0088937f7}"
    }
  }
}