10 REM 64 COLOUR2
   20 A$=STRING$(5,CHR$(255))
   30 MODE2
   40 VDU 23,255,170,85,170,85,170,85,170,85
   50 FOR I=0 TO 7
   60 FOR J=0 TO 7
   70 COLOURI:COLOURJ+128
   80 PRINTA$;
   90 NEXT
  100 NEXT
  110 COLOUR7:COLOUR128