Examine source code of DeadFred Chat

{
  "name": "DeadFred Chat",
  "version": "1.7.0",
  "description": "Chat colours and badges from on-screen chat for DeadFred including live notifications!",
  "content_scripts": [
    {
      "matches": [
        "https://www.twitch.tv/*"
      ],
      "js": [
        "./bundle.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "permissions": [
    "https://florencebot.com/*",
    "https://florencebot-live.voupeuk.workers.dev/*",
    "https://www.twitch.tv/*",
    "notifications",
    "storage",
    "alarms"
  ],
  "icons": {
    "48": "img/deadfred.png",
    "96": "img/deadfred-96.png",
    "128": "img/deadfred-128.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  },
  "browser_action": {
    "default_icon": "img/deadfred.png",
    "default_popup": "popup.html"
  },
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{4b8261a3-90f2-4b63-bfc3-f9bfd844d909}"
    }
  }
}