Examine source code of Discohook Utils

{
  "manifest_version": 3,
  "name": "Discohook Utils",
  "description": "Third-party tools for Discohook.",
  "version": "1.0.2",
  "action": {
    "default_popup": "popout/index.html",
    "default_icon": {
      "16": "/images/16.png",
      "32": "/images/32.png",
      "48": "/images/48.png",
      "128": "/images/128.png"
    }
  },
  "icons": {
    "16": "/images/16.png",
    "32": "/images/32.png",
    "48": "/images/48.png",
    "128": "/images/128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://discohook.org/",
        "https://discohook.org/?data=*",
        "https://discohook.org/viewer",
        "https://discohook.org/viewer?data=*"
      ],
      "js": [
        "browser-polyfill.min.js",
        "constants.js",
        "override-default.js",
        "mentions.js"
      ]
    }
  ],
  "host_permissions": [
    "https://discohook.org/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c82b3366-9548-4a3f-b694-b1231916c15e}"
    }
  }
}