Depending on your preference, the fact that Android app icons can all come in various shapes and sizescan be one of its benefits over iOS.
For some, however, uniform app icons provides a cleaner look and experience.
Samsung has added a new option with the Galaxy S7 andthat places app icons atop the same background, making all of them the same size.
To enable "Icons with backgrounds," open the Settings app. Then tap on Display and wallpaper, followed by Icon backgrounds.
A preview of your current setting will show up in the box below the two options on this page. Switch between the two to get a better idea of what app icons will look like with each respective setting, then tap Done after selecting your preferred look.
When you go back to your home screen or app drawer you'll notice most apps have a new background. The only exception is Samsung's own apps, which are the same size and shape as the new icon background.