Examine source code of Location icon

{
  "manifest_version": 2,
  "name": "Location icon",
  "version": "1.0",
  "description": "Location icons are one of the most familiar icons in maps, delivery apps, travel apps, or navigation 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": "{3a7c11b5-6aa8-4435-8976-b30cf7d338c7}"
    }
  }
}