I’m looking forward to using this option during my coming trip while using a local limited data SIM. Previously, I would go to mobile data and manage permissions individually.
Hopefully, this single switch will make it much easier.
In case you missed it, here’s an explanation.
You can easily switch between light and dark mode on SynoForum.com on the right side in navigation:
... or on mobile:
If you don't see the icon first change the style from style chooser in the bottom left corner: