Prodwarn

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Prodwarn",
  "description": "Display warning when using the production sites",
  "version": "0.4.3",
  "manifest_version": 2,
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end",
      "js": [
        "content-scripts/main.js"
      ],
      "css": [
        "content-scripts/main.css"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "static/images/logo-48.png",
    "default_popup": "popup/index.html"
  },
  "icons": {
    "16": "static/images/logo-16.png",
    "32": "static/images/logo-32.png",
    "48": "static/images/logo-48.png",
    "128": "static/images/logo-128.png"
  }
}