Examine source code of xQc's 7TV on Queup.net

{
  "manifest_version": 3,
  "name": "7TV Emotes on Queup",
  "version": "1.6.7",
  "description": "Displays xQc 7TV emotes on queup.net chat.",
  "permissions": [],
  "host_permissions": [
    "https://www.queup.net/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.queup.net/*"
      ],
      "js": [
        "main.js"
      ],
      "css": [
        "main.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "seventv-hangfm@example.com"
    }
  }
}