Examine source code of Twitch Easy PIP

{
  "manifest_version": 2,
  "name": "Twitch Easy PIP",
  "version": "1.0",
  "Author": "Adrien Plagnol",
  "description": "Removes twitch extensions so you can easily click Picture-in-Picture button on twitch",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "easy-pip.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  }
}