In case anyone missed it, this is Wii U's main user interface : r/wiiu
Super Smash Bros for Wii U | Game UI Database
Wiiu designs, themes, templates and downloadable graphic elements on Dribbble
Index of /images/news/828179
Wii U system software - Wikipedia
E3 2012: A look at Nintendo's Wii U hardware and UI
Gui Guimaraes - Wii u Girl
Wii U - Christian Harries
GitHub - jonbarrow/CemUI: A small launcher for the Cemu WiiU emulator made with Electron. Currently on hiatus, development is currently being focused on Pretendo https://github.com/PretendoNetwork/Pretendo