my $num = $row + $col * $rows;
my ($rgb, $name) = split /:/, $colours->[$num], 3;
$name //= $rgb && $num;
- $name = [ $name, [] ] if $term =~ /^msx/ and !$num;
+ $name = [ $name, [] ] if $term =~ /^msx/ and !$name; # no bg for transparency
$name = [ $name, ['#333'] ] if $term eq 'xkcd';
print colcell($name, $rgb);
}