Nintendo 3DS 9.0.0-20U update now available; includes home screen themes
A new system update for the Nintendo 3DS has been released for the North American version of the console. Update Version 9.0.0-20U now allows users to customize the design and sounds of the handheld’s HOME Menu.
Included in the update are five pre-installed themes that you can see in the video below:
Additional themes can be purchased from the Theme shop (a special section of the Nintendo eShop :D).
To update (if you didn’t get or dismissed the notification) simply go to Settings > Other Settings > System Update.
source Nintendo USTags: 188.8.131.52-20U, Nintendo 3DS