Desmos: Dark Mode

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Desmos: Dark Mode",
  "version": "0.1.3",
  "manifest_version": 3,
  "description": "Dark Mode for Desmos",
  "content_scripts": [
    {
      "matches": [
        "https://*.desmos.com/calculator"
      ],
      "css": [
        "dark.css"
      ]
    }
  ],
  "icons": {
    "128": "iconhlf.png"
  }
}