Examine source code of Synced Tab Groups

{
  "manifest_version": 3,
  "name": "Synced Tab Groups",
  "version": "1.0.0",
  "description": "Sync tab groups across devices using Firefox Account (storage.sync). Requires Firefox 142+ for tab groups APIs.",
  "browser_specific_settings": {
    "gecko": {
      "id": "synced-tab-groups@sefko.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "browsingActivity"
        ]
      }
    }
  },
  "permissions": [
    "tabs",
    "tabGroups",
    "storage",
    "theme"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Open Tab Groups Sync sidebar",
    "default_icon": {
      "16": "icons/icon-16.svg",
      "32": "icons/icon-32.svg",
      "48": "icons/icon-48.svg"
    }
  },
  "sidebar_action": {
    "default_title": "Synced Tab Groups",
    "default_panel": "sidebar.html",
    "default_icon": {
      "16": "icons/icon-16.svg",
      "32": "icons/icon-32.svg",
      "48": "icons/icon-48.svg"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "48": "icons/icon-48.svg",
    "96": "icons/icon-96.svg"
  }
}