Examine source code of Twitch Comfortable Pause

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.3",
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "64": "icons/64.png",
    "96": "icons/96.png",
    "128": "icons/128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "twitch.js"
      ]
    }
  ]
}