Google Docs In Dark

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Google Docs In Dark",
  "version": "1.0.0",
  "icons": {
    "16": "assets/icons/favicon-16.png",
    "32": "assets/icons/favicon-32.png",
    "48": "assets/icons/favicon-48.png",
    "128": "assets/icons/favicon-128.png"
  },
  "description": "Says what it does or does what it says.",
  "homepage_url": "https://github.com/Coderantine/GoogleDocsInDark",
  "short_name": "DocsInDark",
  "permissions": [
    "storage",
    "declarativeContent",
    "*://docs.google.com/*"
  ],
  "author": "arkoc",
  "minimum_chrome_version": "49",
  "page_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icons/favicon-16.png",
      "32": "assets/icons/favicon-32.png",
      "48": "assets/icons/favicon-48.png",
      "128": "assets/icons/favicon-128.png"
    },
    "default_title": "Docs in Dark"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "*://docs.google.com/*"
      ],
      "js": [
        "js/contentScript.js"
      ]
    }
  ]
}