Examine source code of Hard Refresh Button

{
  "manifest_version": 2,
  "name": "Hard Refresh Button",
  "description": "Button to refresh the current page without using the cache.",
  "version": "1.0.1resigned1",
  "author": "electrotype",
  "icons": {
    "32": "icons/32.png",
    "48": "icons/48.png"
  },
  "browser_action": {
    "default_title": "Hard Refresh",
    "default_icon": {
      "32": "icons/32.png",
      "48": "icons/48.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b6da57d3-9727-4bc0-b974-d13e7c004af0}"
    }
  }
}