Whatsapp Audio Speed Controller

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Whatsapp Audio Speed Controller",
  "version": "0.2",
  "description": "Increase your produtivity",
  "icons": {
    "16": "icon16.png",
    "128": "128.png"
  },
  "author": "Marcello Marques de Oliveira",
  "content_scripts": [
    {
      "matches": [
        "https://web.whatsapp.com/"
      ],
      "css": [
        "style.css"
      ],
      "js": [
        "index.js"
      ]
    }
  ]
}