Examine source code of Alarm Icon

{
  "manifest_version": 2,
  "name": "Alarm Icon",
  "version": "1.0",
  "description": "The alarm icon is a common graphic in digital applications and designs, representing functions related to time, reminders, and alerts.",
  "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": "{36fa8b4d-15d4-4a72-87cd-576b307fe4a1}"
    }
  }
}