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#!/usr/bin/perl
# Author: Todd Larason <jtl@molehill.org>
# $XFree86: xc/programs/xterm/vttests/256colors2.pl,v 1.1 1999/07/11 08:49:54 dawes Exp $
print "256 color mode\n\n";
# display back ground colors
for ($fgbg = 38; $fgbg <= 48; $fgbg +=10) {
# first the system ones:
print "System colors:\n";
for ($color = 0; $color < 8; $color++) {
print "\x1b[${fgbg};5;${color}m::";
}
print "\x1b[0m\n";
for ($color = 8; $color < 16; $color++) {
print "\x1b[${fgbg};5;${color}m::";
}
print "\x1b[0m\n\n";
# now the color cube
print "Color cube, 6x6x6:\n";
for ($green = 0; $green < 6; $green++) {
for ($red = 0; $red < 6; $red++) {
for ($blue = 0; $blue < 6; $blue++) {
$color = 16 + ($red * 36) + ($green * 6) + $blue;
print "\x1b[${fgbg};5;${color}m::";
}
print "\x1b[0m ";
}
print "\n";
}
# now the grayscale ramp
print "Grayscale ramp:\n";
for ($color = 232; $color < 256; $color++) {
print "\x1b[${fgbg};5;${color}m::";
}
print "\x1b[0m\n\n";
}
print "Examples for the 3-byte color mode\n\n";
for ($fgbg = 38; $fgbg <= 48; $fgbg +=10) {
# now the color cube
print "Color cube\n";
for ($green = 0; $green < 256; $green+=51) {
for ($red = 0; $red < 256; $red+=51) {
for ($blue = 0; $blue < 256; $blue+=51) {
print "\x1b[${fgbg};2;${red};${green};${blue}m::";
}
print "\x1b[0m ";
}
print "\n";
}
# now the grayscale ramp
print "Grayscale ramp:\n";
for ($gray = 8; $gray < 256; $gray+=10) {
print "\x1b[${fgbg};2;${gray};${gray};${gray}m::";
}
print "\x1b[0m\n\n";
}