#!/bin/sh
set -eu
set -o pipefail

############################################################
# Nico Golde <nico(at)ngolde.de> Homepage: http://www.ngolde.de
# Last change: Mon Feb 16 16:24:41 CET 2004
############################################################

for attr in 0 1 2 3 4 5 6 7; do
    echo "----------------------------------------------------------------"
    printf 'ESC[%s;Foreground;Background - \n' $attr
    for fore in 30 31 32 33 34 35 36 37; do
        for back in 40 41 42 43 44 45 46 47; do
            printf '\033[%s;%s;%sm %02s;%02s  ' $attr $fore $back $fore $back
        done
        printf '\033[0m\n'
    done
    printf '\033[0m'
done

printf '\n'
for color in $(seq 0 255); do
    printf '\033[%s;%s;%sm  \033[m' 48 5 "$color"
    if [ "$color" -eq 15 ] || [ "$(echo "scale = 0; ($color - 15) % 36" | bc)" -eq 0 ]; then
        printf '\n'
    fi
done
printf '\033[0m\n'