Examine source code of Twitch AutoRefresher

{
  "name": "Twitch AutoRefresher fixed by TwoHam",
  "short_name": "TwitchReload",
  "version": "1.1",
  "manifest_version": 2,
  "description": "This extension will automatically refresh twitch stream whenever error #2000/#3000 occurs.",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "page_action": {
    "default_icon": "icon16.png",
    "default_title": "Twitch AutoRefresher fixed by TwoHam"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.twitch.tv/*"
      ],
      "run_at": "document_end",
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "activeTab"
  ]
}