template

#!/usr/bin/env bash

# ??
#
# Author: ?

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

for i in {0..7}; do
    printf -v g$i %b "\e[9${i}m"
done

# bold
bd=$'\e[1m'

# reset color
rt=$'\e[0m'

# invert color (swaps positive and negative spaces)
iv=$'\e[7m'

### SYMBOLS ###
# BLOCKS:
# full: █ ▓ ▒ ░
# left (descending size): ▉ ▊ ▋ ▌ ▍ ▎ ▏
# right: ▐  (half)▕  (1/8)
# upper: ▀  (half)  ▔ (1/8)
# lower (descending size): ▇ ▆ ▅ ▄ ▃ ▂ ▁
# quadrants: ▖ (lower left) ▗  (lower right) ▘ (upper left) ▝  (upper right)

# LINES:
# horizontal: ▬ — ▬  ― ‗ … ˍ ⚊ ⚌ ⚍	⚎	⚏
# slanted:        ⁄ ╱ ╲ ⁒
# wavy: ˘ ⁐ ⁓ ⁔ ‿ 🜳 🝠 🝄 🝞 🝟 🝣 ⺁ ⺀ ⚞ ⚟ ♨ ◠◡ ◜◝◞◟☡

# SHAPES:
# circular: ● ◎ ◉ ◯ ◠ ◡    • ◐ ◑ ◒ ◓ Θ Ο ͻ ͼ ͽ Ѻ ˚ ⚬ ⚭	⚮ ⚯ ⚆	⚇ ⚈	⚉
# triangular: ▲ ▼ ◄ ► ◀ ‣ ◢ ◤ ◥	◤◢   ◭ ◮	◺ Δ 🜁 	🜂 ⛬ 🜃 	🜄 	🜅 ⁂ ‸ ‹ 	›
# quadilaterals: ■ ▨ ▤ ▥ ▩ ♢ ♦ ⛶ ▰ 🀆 🀫 ☐
# stars: ★ ☆ ⛤ ⛥ ⛦ ⛧

# BOXES:
# double border: ═ ║ ╔ ╦ ╗ ╚ ╩ ╝
# single border: ∟ ┌ ┐└ ┘
# branches: ˦ ˧ ˨ ˪ ˫
#
# dots: ⁚ ⁘ ⁙ ⁛ ⁝ ⁞ ⁖ ⣰  see https://en.wikipedia.org/wiki/Braille_Patterns

### COLORS ###
# foreground:
# f0=black, f1=red, f2=green, f3=yellow, f4=blue
# f5=magenta, f6=cyan, f7=white
#
# g0=bright black, g1=bright red, g2=bright green, g3=bright yellow,
# g4=bright blue, g5=bright magneta, g6=bright cyan, g7=bright white
#
# background:
# b0=black, b1=red, b2=green, b3=yellow, b4=blue
# b5=magenta, b6=cyan, b7=white

# this is a 10x20 grid of blocks to start you off
cat << EOF

$f7████████████████████
$f7████████████████████
$f7████████████████████
$f7████████████████████
$f7████████████████████
$f7████████████████████
$f7████████████████████
$f7████████████████████
$f7████████████████████
$f7████████████████████
$rt
EOF