Duolingo Image Hider

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Duolingo Image Hider",
  "version": "0.0.1",
  "browser_action": {
    "default_icon": "icon_128.png"
  },
  "description": "When practicing languages at Duolingo, the website shows you images which give away the answer. This extension hides the images.",
  "author": "drvink.com",
  "homepage_url": "https://drvink.com",
  "content_scripts": [
    {
      "matches": [
        "*://duolingo.com/skill/*",
        "*://*.duolingo.com/skill/*"
      ],
      "js": [
        "jquery-3.5.1.min.js",
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "icons": {
    "128": "icon_128.png"
  }
}