Labels:black | darkness OCR: 1a A single character interpreted by the system as alert (BEL, ASCII 7). \b Backspace (BS, ASCII 8). \t Horisontal tab (HT, ASCII 9). Linefeed, also known as newline (LF, ASCII 10). Vertical tab (VT, ASCII 11). \₫ Form feed (FF, ASCII 12). Carriage return (CR, ASCII 13). The control character c, where c may be any character with ASCII code 64-95 (@ to _). The ASCII code of \"c is 64 less than that of c. The character with code ddd (3 decimal digits denoting an integer 0-255). .f This sequence is ignored, where f .. f stands for a sequence of one or more formatting characters (such as space, tab, newline, form-feed).
