What's a good Android app that lets you change up your phone's look with widgets and wallpapers without being a total resource hog during a long shift?

Okay, so I've been using ThemePro for a while now, and honestly, it's been a lifesaver. I work long shifts at the hospital, and sometimes just changing my phone's wallpaper or adding a useful widget can make a small difference in my day. I needed something that wouldn't drain my battery or crash constantly – I've had enough crashes for one day, thank you very much! ThemePro has been surprisingly stable; hasn't crashed once in the six months I've had it. Plus, they have a decent selection of widgets – nothing too fancy, but stuff like a quick calendar view or a weather update is super useful. It's like having a pocket reference guide, but for… aesthetics, I guess? The wallpapers are nice too, and it's easy to switch things up without getting bogged down in complicated settings. It's a no-fuss approach, which is exactly what I need when I'm running on fumes.