Tap on the Dark underneath Background to switch your Windows Phone’s primary theme. Again, by default its set to black, but you can also switch it to white for a brighter experience.

Let’s face it; the default white background is boring; therefore, we suspect many users will want to change that. Change Background in Microsoft Planner So, is it possible to change the ...

I've seen this mentioned on the net, so it happens to others too, and seemingly since Windows 10, but I haven't found much detailed discussions or any fixes. Perhaps it's not that common then. So ...

To change the background color, drag a color swatch from the color picker and drop it on the window. Repeat as necessary with varying colors until you have one you like.