Stackoverflow '90s

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Stackoverflow '90s",
  "description": "Bring back '90s on Stackoverflow",
  "version": "1.0.0",
  "browser_action": {
    "default_icon": {
      "16": "images/icon16.png",
      "32": "images/icon32.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    }
  },
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "permissions": [
    "*://*.stackoverflow.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.stackoverflow.com/*"
      ],
      "css": [
        "90s.css"
      ],
      "js": [
        "90s.js"
      ]
    }
  ]
}