Examine source code of Matters More Destination

{
  "manifest_version": 2,
  "name": "The Journey Matters More Destination",
  "version": "1.0",
  "description": "Quotes celebrating the journey over the destination",
  "permissions": [],
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": {
      "128": "images/journey-logo.png"
    }
  },
  "icons": {
    "128": "images/journey-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bb96bffa-534d-42b5-b4f4-037ccb775e3f}"
    }
  }
}