function color() 
{
        esc="\033["
        echo -n " _ _ _ _ _40 _ _ _ 41_ _ _ _42 _ _ _ 43"
        echo "_ _ _ 44_ _ _ _45 _ _ _ 46_ _ _ _47 _"
        for fore in 30 31 32 33 34 35 36 37; do
                line1="$fore  "
                line2="    "
                for back in 40 41 42 43 44 45 46 47; do
                line1="${line1}${esc}${back};${fore}m Normal  ${esc}0m"
                line2="${line2}${esc}${back};${fore};1m Bold    ${esc}0m"
                done
                echo -e "$line1\n$line2"
        done
}