Microsoft To-Do is a fabulous UWP application for phone, tablet and desktop - and beyond. It's being updated every week now(!) and today's update, v1.44, brings themes for Planned/Scheduled lists and better list sorting.

Here's the official changelog:

• Schedule Sorting - If your Smart Scheduled List seemed a little messy, we apologize for the confusion. With this update we have improved the sorting methods.
   
• Themes in the Scheduled list - If you use the different themes and colors to keep your lists organized, you'll be happy to know that you can now also use them in the Scheduled list.
   
• Hide empty smart lists - Now you can hide your empty smart lists automatically, so you will not see the Planned and Important lists in the sidebar if they are empty.
   
• Likewise, smart lists can be hidden from the shortcut menu.

Here's the new version in action:

Note how you can toggle on the two 'smart lists', depending on what you need to see, or prefer. And now you can auto-hide either of these if they're currently empty, cleaning up the home view; (right) theming is now available for the Planned (Scheduled) smart list.

You can grab Microsoft To-Do here in the Store, if you haven't already. As mentioned before, this is shaping up to be an attractive and pretty powerful tool/service, syncing on multiple devices and platforms, and I'll be diving into more depth with it at some point.