Let's face it: holiday decorating is part of our nesting nature. These days, our phones are just as much our "home" as any; hence, a bit of Christmas-themed mobile wallpaper can go a long way.

Android 10's dark theme affects the entire system and your apps by default, but not your wallpaper. If you want the wallpaper to change, this app can do it.

There's been a lot of talk recently about whether phones with AMOLED screens, like the Samsung Galaxy S, can actually save battery by using darker wallpapers and themes. Reader Steve performed a ...