for c in `seq 0 255`;do t=5;[[ $c -lt 108 ]]&&t=0;for i in `seq $t 5`;do echo -e "\e[0;48;$i;${c}m|| $i:$c `seq -s+0 $(($COLUMNS/2))|tr -d '[0-9]'`\e[0m";done;done
This command generates colorful shell backgrounds and effects for Non-X environments, providing an array of shading and color options.
Alternative: Various terminal customization tools or shell themes can achieve similar results more conveniently.