Anyway to keep the swirly waves with a custom theme/background? I love those swirly things and can't give them up.
yes, choose "no wallpaper" from your system settings. It will display the default sony background. The only catch is that it will force the color that the theme creator chooses, and I don't know if this is selectable by the user.
Also for theme creators, you can actually include multiple wallpapers. The system will then randomly choose a wallpaper from your theme at each startup.