Examine source code of All Things Change

{
  "manifest_version": 2,
  "name": "All Things Change",
  "version": "1.0",
  "description": "A collection of quotes on compassion and the eternal peace of the mind amidst change.",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/thing-logo.png"
    }
  },
  "icons": {
    "128": "images/thing-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5216aaf2-c4c7-4eb2-b377-35fd5e0719a3}"
    }
  }
}