Duolingo Strengthen Skills Pro

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Duolingo Strengthen Skills Pro",
  "version": "0.1.1",
  "author": "Emil Bruckner",
  "description": "Select which Duolingo Skills you want to strengthen",
  "homepage_url": "http://hyperurl.co/duo?IQid=chrome.0-1",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "page_action": {
    "default_icon": {
      "16": "icon16.png",
      "24": "icon24.png",
      "32": "icon32.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.duolingo.com/*",
        "http://www.duolingo.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "script.js"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}