195 Foreground Background Colour 0 128 Black (normal background) 1 129 Red 2 130 Green 3 131 Yellow 4 132 Blue 5 133 Magenta (blue/red) 6 134 Cyan (blue/green) 7 135 White (normal foreground) 8 136 Flashing black/white 9 137 Flashing red/cyan 10 138 Flashing green/magenta 11 139 Flashing yellow/blue 12 140 Flashing blue/yellow 13 141 Flashing magenta/green 14 142 Flashing cyan/red 15 143 Flashing white/black If you are not familiar with BASIC then you may already have had too much of this! Nevertheless, it is possible, for example in a four colour MODE to select any four colours from the available 16 effects by using another command.
Remember that the colours given above (black, red, yellow, white) will be available as soon as four colour MODE is selected – but you can then select other colours later. Try the following: MODE 5 COLOUR 1 VDU 19,1,4,0,0,0 VDU 19,1,5,0,0,0 COLOUR 2 VDU 19,2,4,0,0,0 VDU 19,1,3,0,0,0 As you will see the statement VDU 19 , can be used to change the ‘actual colour’ of colour 1 or 2. The number which follows the VDU 19 , is the number that is referred to by the COLOUR statement. It is referred to as a ‘logical colour’.