GChat Dark Mode

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "GChat Dark Mode",
  "version": "0.1.1",
  "description": "Make Google Chat Dark",
  "content_scripts": [
    {
      "js": [
        "index.js"
      ],
      "css": [
        "styles.css"
      ],
      "matches": [
        "https://mail.google.com/chat/*",
        "https://chat.google.com/*",
        "http://calendar.google.com/*"
      ],
      "all_frames": true
    }
  ]
}