Add icon and persistence to notification.

sunset-alarm

@@ -97,10 +97,13 @@ show_alert() {
     TITLE="Sunset Alarm"
     MESSAGE="Sunset is in ${MINUTES} minute(s)."
 
+    persistent="-t 0 --wait"
+    icon="-i weather-clear"
+
     if command -v fyi >/dev/null 2>&1; then
-        fyi "$TITLE" "$MESSAGE"
+        fyi $icon $persistent "$TITLE" "$MESSAGE"
     elif command -v notify-send >/dev/null 2>&1; then
-        notify-send "$TITLE" "$MESSAGE"
+        notify-send $icon $persistent "$TITLE" "$MESSAGE"
     elif command -v wall >/dev/null 2>&1; then
         echo "${TITLE}: ${MESSAGE}" | wall
     else