Twitch chat reader for streamer

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "version": "1.2",
  "name": "Twitch chat reader for streamer",
  "description": "Подсвечивает новых пользователей и пишет время от последнего сообщения в чате",
  "browser_action": {
    "default_title": "Settings :: Twitch chat reader for streamer",
    "default_icon": "logo.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.twitch.tv/*",
        "https://dashboard.twitch.tv/*"
      ],
      "css": [
        "styles.css"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "https://www.twitch.tv/*",
    "https://dashboard.twitch.tv/*"
  ]
}