A black circle with a white filling and a dot in the centerA black circle with a white filling and a dot in the center
The screensaver for the program is white on a black backgroundThe screensaver for the program is white on a black background
Lettering in multicolored letters on a black backgroundLettering in multicolored letters on a black background
Предмет или действие, служащее условным знаком какого-н. понятия, чего-н. отвлечённого.