Examine source code of DarkHunt [Discontinued]

{
  "manifest_version": 2,
  "name": "DarkHunt",
  "version": "1.1",
  "author": "Hexandcube",
  "description": "Darkmode for Product Hunt",
  "icons": {
    "48": "icons/icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.producthunt.com/*"
      ],
      "css": [
        "darkhunt.css"
      ]
    }
  ]
}