Make GitHub Great Again

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Make GitHub Great Again",
  "version": "2.0.1",
  "description": "Extension to make GitHub great again!",
  "minimum_chrome_version": "26",
  "icons": {
    "16": "assets/icon_16.png",
    "48": "assets/icon_48.png",
    "128": "assets/icon_128.png"
  },
  "page_action": {
    "default_title": "Toggle light/dark header"
  },
  "permissions": [
    "storage"
  ],
  "background": {
    "persistent": false,
    "scripts": [
      "src/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://github.com/*",
        "*://*.github.com/*"
      ],
      "js": [
        "src/content_script.js"
      ],
      "css": [
        "src/header.css",
        "src/links.css",
        "src/save-the-colors.css",
        "src/fonts.css"
      ],
      "run_at": "document_start"
    }
  ],
  "options_ui": {
    "page": "src/options.html",
    "chrome_style": true
  }
}