Bash dialog with return values (esc, extra button) using pipes redirection

dialog.sh

check_return_value() {
  retval=$?
  case $retval in
    0|3) return ;;
    *) clear
       prompt -i "\n Operation canceled by user, Bye!"
       exit 1 ;;
  esac
}

choice=$(dialog --backtitle ${Project_Name} \
     --no-tags --extra-button --extra-label "Remove" \
    --radiolist "Choose your Grub theme : " 15 40 5 \
      "vimix" "Vimix Theme" off  \
      "tela" "Tela Theme" on \
      "stylish" "Stylish Theme" off  \
      "slaze" "Slaze Theme" off  \
      "whitesur" "WhiteSur Theme" off \
      3>&1 1>&2 2>&3 3>&-)
    check_return_value
    echo $choice