I’m not sure if this qualifies as new or newsworthy, but today was the first time I’d noticed it. Now you can apply themes with one-click from the Microsoft Store. Previously, I suppose you had to get/download the theme, install the theme, and then apply the theme. I typically just use the Bing Desktop to get a daily wallpaper, so I’m not 100% sure about the process, but I do recall it seemed like it was multiple steps previously.
Now, when you preview a theme in the Store, there’s a one-click Apply button that does it all for you. Still takes way too long IMO, but it does indeed get the job done with one click. So…pretty cool.