readonly ENABLED='󰂚 '
readonly DISABLED='󱏧 '
readonly WAITING='󰵙 '

dbus-monitor path='/org/freedesktop/Notifications',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged' --profile |
  while read -r _; do
    PAUSED="$(dunstctl is-paused)"
    if [ "$PAUSED" == 'false' ]; then
      TEXT="$ENABLED"
    else
      TEXT="$DISABLED"
      COUNT="$(dunstctl count waiting)"
      if [ "$COUNT" != '0' ]; then
        TEXT="$WAITING"
      fi
    fi
    printf "%s\n" "$TEXT"
  done