Tab Size on GitHub

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Tab Size on GitHub",
  "version": "1.2.0",
  "description": "Make tab indented code more readable by forcing the tab size to 4 instead of 8",
  "homepage_url": "https://github.com/sindresorhus/tab-size-on-github",
  "manifest_version": 2,
  "minimum_chrome_version": "36",
  "icons": {
    "128": "icon.png"
  },
  "permissions": [
    "https://github.com/*/*",
    "https://gist.github.com/*/*",
    "https://raw.githubusercontent.com/*/*"
  ],
  "content_scripts": [
    {
      "run_at": "document_end",
      "matches": [
        "https://github.com/*/*",
        "https://gist.github.com/*/*",
        "https://raw.githubusercontent.com/*/*"
      ],
      "css": [
        "content.css"
      ]
    }
  ]
}