Select Menu > Settings and Personal > Themes.
You can use themes to change the look of the display, such as wallpaper and main menu layout.
To change the theme that is used for all the applications in your device, select General. To preview a theme before activating it, scroll to the theme, and wait for a few seconds. To activate the theme, select Options > Set. The active theme is indicated by .
To change the layout of the main menu, select Menu.
To change the look of the home screen, select Home screen theme.
To have a wallpaper image or a slide show of changing images as the background in the home screen, select Wallpaper > Image or Slide show.
To change the image displayed in the home screen when a call is received, select Call image.