Duolingo TTS Controls

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Duolingo TTS Controls",
  "version": "2.6.0",
  "description": "Provides playback controls for some of the challenges on Duolingo.",
  "host_permissions": [
    "https://*.duolingo.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.duolingo.com/*"
      ],
      "js": [
        "src/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "src/observer.js",
        "src/ui.js",
        "assets/css/ui.css"
      ],
      "matches": [
        "https://*.duolingo.com/*"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon_16.png",
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png",
    "256": "icons/icon_256.png",
    "512": "icons/icon_512.png"
  },
  "manifest_version": 3
}