Can be changed, the method is to open the setting menu on the desktop of the phone, find \"display\" in the setting interface, and then click \"screen effect\" in the display menu, in the screen effect setting interface, you can see three modes and can choose the color of the circle, the default is smart mode, but you can also drag the white aperture in the circle to choose the color. You can choose from a more colorful \"Screen Enhancement Mode\" or \"Standard Mode.\"