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    >      A8    52mm x   74mm   B8    62mm x   88mm   C8    57mm x   81mm
    >      A9    37mm x   52mm   B9    44mm x   62mm   C9    40mm x   57mm
    >     A10    26mm x   37mm  B10    31mm x   44mm  C10    28mm x   40mm

=item ANSI Background;Foreground Color Table

I<What color is a mirror?  It depends whom you ask. ;-)>

You get numbers to fill into C<"\e[BGm">, C<"\e[FGm"> or C<"\e[BG;FGm"> to get
a color and close it with C<"\e[m">.  There are twice twice 8 different colors
for dim & bright and for background & foreground.  Hence the multiplication of
escape codes and of values to fill them.

This fills C<@A(RGV)> in B<-A> twice, the 2nd time looping over the 1st list,
as though it had been given on the command line.  It maps it to the 16-fold
number format to print the header, swallowing every other number with 0-width.
Then the main program loops over it pairwise with C<$A(RGV)>, thanks to
B<-o2>, to print the body.  Numbers are duplicated with C<(N)x2>, once to go
into the escape sequence, once to be displayed:

    pl -o2A 1..8 -A '$_, $_+39, $_+8, $_+99' -B 'form "co:   bg;fg"."%4d%.0s"x16, @ARGV;