Here is the icon for Nova Launcher, a hot Android home replacement app, shown far larger than it will ever appear in use.

This is more the size it will be seen. Nova Launcher is a highly customizable, performance driven, home screen replacement for Android 4.0+.

As you can see from the 4.5 star rating, users really value this app. For more details on the app, go to: https://play.google.com/store/apps/details?id=com.teslacoilsw.launcher&hl=en

And here it is, sitting on a white background.