WAw background changer

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "WAw background changer",
  "description": "Change your web app background using this extension. Either enter a URL or upload you custom picture.",
  "version": "1.1.3",
  "content_scripts": [
    {
      "matches": [
        "https://web.whatsapp.com/*"
      ],
      "js": [
        "vendor/jQuery/jquery-3.2.1.min.js",
        "js/content.js"
      ],
      "css": [
        "css/custom.css"
      ]
    }
  ],
  "icons": {
    "128": "WAw background changer.png"
  },
  "browser_action": {
    "default_popup": "options.html"
  },
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "options_page": "options.html"
}