colors

palette.sh

palette () 
{ 
    echo -en "\n   +  ";
    for i in {0..35};
    do
        printf "%2b " $i;
    done;
    printf "\n\n %3b  " 0;
    for i in {0..15};
    do
        echo -en "\033[48;5;${i}m  \033[m ";
    done;
    for i in {0..6};
    do
        let "i = i*36 +16";
        printf "\n\n %3b  " $i;
        for j in {0..35};
        do
            let "val = i+j";
            echo -en "\033[48;5;${val}m  \033[m ";
        done;
    done;
    echo -e "\n";
}