>>31159770Not really fond of most of the official Pokemon 3DS themes, since too much is going on in the top screen, while either nothing interesting is shown on the bottom screen, or the button colors stick out. The top screen's background is usually obscured by the game that's being highlighted, while there's a lot of empty space in the bottom screen if you're using smaller icons, so themes like the Groudon one you posted have its face covered by a game's title or folder, while the bottom screen just shows its legs rather than something nice.
Ended up making my own theme, with using Route 225's theme as the background music.