Abstract: A method, electronic device, and non-transitory computer readable medium are discussed, an example method includes displaying a first window on a first display, and displaying a second window on a second display. The first window includes first content used as a wallpaper of the first display, or the second window includes second content used as a wallpaper of the second display. The example method includes, in response to an operation of setting first target content as the wallpaper of the second display by a user, displaying a third window on the second display, and displaying the first target content in the third window. The third window covers the second window.