Dark Scrollbar for YouTube™

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Dark Scrollbar for YouTube™",
  "description": "Adds a dark scrollbar to YouTube",
  "version": "1.0.0",
  "icons": {
    "128": "media/Icon.png"
  },
  "permissions": [
    "https://*.youtube.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://youtube.com/*",
        "https://www.youtube.com/*"
      ],
      "css": [
        "css/scrollbar.css"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "css/scrollbar.css"
  ]
}