Examine source code of Twitch Stats

{
  "name": "Twitch Stats",
  "description": "Brings back Twitch recap for yourself to see how long you watched which streamer and the amount of messages sent.",
  "version": "1.1.0",
  "manifest_version": 3,
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArzobF0CNgQpFbgr1leCZ6YB1oK83qJzszucDCsxPHJZOR5LfSNGx1G9dn9srwzw4MQ4ib2sh9UWN2Kxv/R3R+7aSHhlljErHeO+GH16nmS+5wtFkpSYjoyJs5Y3dmaTO3cYADpkCC5dQAbW7nmoBRdkoyqUkwa6aDx1xqaEDVJglMsfXQISZepJ9AbTUpQeA9JVL36p7cGNE0vk3O1B0OAK5r65XiLCnjgPybacYgDe9JphPMH+Np0fg1MvFmCDFqTU8t5bh0HiP8TwFhH52vgteEd225AwTKWKe7RtJZDOef42UG0uCA/Jl7Gq7XbwBN9F16iE5LgDxooCHrT67IQIDAQAB",
  "icons": {
    "64": "images/icon-64.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "twitch-stats@hedean.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "personallyIdentifyingInfo"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "action": {
    "default_title": "Twitch Stats",
    "default_popup": "popup/popup.html"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/content.js"
      ],
      "matches": [
        "https://www.twitch.tv/*"
      ]
    }
  ],
  "background": {
    "service_worker": "scripts/background.js",
    "scripts": [
      "scripts/background.js"
    ]
  },
  "host_permissions": [
    "https://api.twitch.tv/*"
  ],
  "permissions": [
    "identity",
    "storage"
  ]
}