Examine source code of KickChat2Twitch

{
  "manifest_version": 3,
  "name": "KickChat2Twitch",
  "version": "1.1.0",
  "description": "Inject Kick chat messages seamlessly into Twitch chat UI for a unified viewing experience.",
  "author": "Rudi Haamke",
  "homepage_url": "https://github.com/superruudje/kickchat2twitch-extension",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "libs/pusher.min.js",
        "kickChat.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "host_permissions": [
    "https://kick.com/api/v1/channels/*",
    "wss://ws-us2.pusher.com/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "kick_logo.jpg"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "kickchat2twitch@superruudje.dev"
    }
  }
}