tl.sh

#!/bin/sh
Y='\033[1;33m'
G='\033[1;30m'
L='\033[1;37m'
N='\033[0m'
C='█'
H=1
W=2

for i in $(seq 1 $W); do
  B=$B$C
done

print() {
  for i in $(seq 1 $H); do
    echo $Y$B$1$B$N
  done
}

print $B$B$B$B
print $B$B$B$B
print $G$B$B$L$B$Y$B
print $B$G$B$L$B$B$Y
print $B$B$B$B
print $B$B$B$B