Examine source code of DuoFlash Anki

{
  "manifest_version": 2,
  "name": "DuoFlash Anki",
  "description": "Extension that integrates Duolingo errors with Anki using Gemini AI",
  "version": "2.1.0",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://*.duolingo.com/*",
    "https://generativelanguage.googleapis.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "a7b8c9d0-e1f2-4a3b-8c5d-6e7f8a9b0c1d@MoriNo23.github.io"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "DuoFlash Anki",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.duolingo.com/*"
      ],
      "js": [
        "content-scripts/content.js",
        "content-scripts/floatingButton.js"
      ]
    }
  ]
}