Examine source code of Pata extension

{
  "name": "Pata extension",
  "version": "0.0.3",
  "description": "A companion extension for bigpata.com",
  "manifest_version": 2,
  "icons": {
    "16": "images/pe16.png",
    "32": "images/pe32.png",
    "48": "images/pe48.png",
    "128": "images/pe128.png",
    "256": "images/pe256.png"
  },
  "content_scripts": [
    {
      "run_at": "document_idle",
      "js": [
        "content.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "converted_from_user_script": true,
  "background": {
    "scripts": [
      "lib/hot-reload.js"
    ]
  }
}