Jupyter Dark Mode

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Jupyter Dark Mode",
  "version": "0.1.0",
  "description": "This Extension Provides Dark Mode for Jupyter before it is released officially",
  "page_action": {
    "default_icon": {
      "16": "images/get_started16.png",
      "32": "images/get_started32.png",
      "48": "images/get_started48.png",
      "128": "images/get_started128.png"
    }
  },
  "content_scripts": [
    {
      "css": [
        "styles.css"
      ],
      "matches": [
        "http://localhost:8888/*"
      ]
    }
  ]
}