Ключевые слова: gray background, gray background and white number, gray background with number, gray background with white, gray background with white number, gray number, gray number on white, gray number on white surface, gray number with white background, gray numeral, gray numeral backdrop, gray numeral on white backdrop, gray numeral with white backdrop, gray numeral with white canvas, gray numerical background, gray on white, number in gray, number in gray and white, number in white, number in white on gray, number with gray and white, white digit, white number, white number backdrop, white number on gray backdrop, white number on gray setting, white number on gray surface, white numeral, white numeral on gray backdrop, white on a gray background, white on a gray canvas, white on gray canvas, white on gray cloth, white on gray setting, white with gray backdrop, white with gray setting,