#!/bin/bash
resetmods() {
    printf '\e[?5l'
    printf '\e[0m'
    return -1
}

trap "resetmods; return 1" INT
text=${1:-"PANIC IS ADVISED"}
color=${2:-33}
delay=${3:-.48}
printf "\e[${color}m$text";
while true;
do
    printf '\e[?5h';
    sleep $delay;
    printf '\e[?5l';
    read -s -n1 -t1 && break;
done;

resetmods