eh bein desolé
j'utilise pas l'interface sense mais voilà ce que j'ai trouvé en cherchant "un peu" sur google, chose que moi je trouve "logique" avant de poster sur un forum
Touch and hold the screen somewhere where there are no widgets or app icons
An Add to Home screen pop-up will appear - tap the Wallpapers option
You will then be presented with a Select wallpaper from window - choose Live wallpapers, Media gallery, Wallpaper gallery or Wallpapers
For Live wallpapers:
Scroll to a live wallpaper that you want to use, and tap it
If you're satisfied with your selection, tap Set wallpaper
et n'oubli pas de faire la traduction