Examine source code of Alime Background

{
  "manifest_version": 3,
  "name": "Alime Background",
  "version": "1.0",
  "description": "A folk from wallpaper clan chrome extension",
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "alime@traleeee",
      "strict_min_version": "109.0"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png",
    "144": "icons/icon144.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "96": "icons/icon96.png",
      "128": "icons/icon128.png",
      "144": "icons/icon144.png"
    }
  },
  "chrome_url_overrides": {
    "newtab": "newtab/index.html"
  }
}