test_colorscheme

#!/bin/bash

f=3 b=4
for j in f b; do
    for i in {0..7}; do
        printf -v $j$i %b "\e[${!j}${i}m"
    done
done
bld=$'\e[1m'
rst=$'\e[0m'

cat << EOF

 $f1  ▀▄   ▄▀     $f2 ▄▄▄████▄▄▄    $f3  ▄██▄     $f4  ▀▄   ▄▀     $f5 ▄▄▄████▄▄▄    $f6  ▄██▄  $rst
 $f1 ▄█▀███▀█▄    $f2███▀▀██▀▀███   $f3▄█▀██▀█▄   $f4 ▄█▀███▀█▄    $f5███▀▀██▀▀███   $f6▄█▀██▀█▄$rst
 $f1█▀███████▀█   $f2▀▀███▀▀███▀▀   $f3▀█▀██▀█▀   $f4█▀███████▀█   $f5▀▀███▀▀███▀▀   $f6▀█▀██▀█▀$rst
 $f1▀ ▀▄▄ ▄▄▀ ▀   $f2 ▀█▄ ▀▀ ▄█▀    $f3▀▄    ▄▀   $f4▀ ▀▄▄ ▄▄▀ ▀   $f5 ▀█▄ ▀▀ ▄█▀    $f6▀▄    ▄▀$rst

 $bld$f1▄ ▀▄   ▄▀ ▄   $f2 ▄▄▄████▄▄▄    $f3  ▄██▄     $f4▄ ▀▄   ▄▀ ▄   $f5 ▄▄▄████▄▄▄    $f6  ▄██▄  $rst
 $bld$f1█▄█▀███▀█▄█   $f2███▀▀██▀▀███   $f3▄█▀██▀█▄   $f4█▄█▀███▀█▄█   $f5███▀▀██▀▀███   $f6▄█▀██▀█▄$rst
 $bld$f1▀█████████▀   $f2▀▀▀██▀▀██▀▀▀   $f3▀▀█▀▀█▀▀   $f4▀█████████▀   $f5▀▀▀██▀▀██▀▀▀   $f6▀▀█▀▀█▀▀$rst
 $bld$f1 ▄▀     ▀▄    $f2▄▄▀▀ ▀▀ ▀▀▄▄   $f3▄▀▄▀▀▄▀▄   $f4 ▄▀     ▀▄    $f5▄▄▀▀ ▀▀ ▀▀▄▄   $f6▄▀▄▀▀▄▀▄$rst


                                     $f7▌$rst

                                   $f7▌$rst

                              $f7    ▄█▄    $rst
                              $f7▄█████████▄$rst
                              $f7▀▀▀▀▀▀▀▀▀▀▀$rst

EOF