Update gravity.sh to use color with -t

Co-authored-by: RD WebDesign <github@rdwebdesign.com.br>
Signed-off-by: Dominik <DL6ER@users.noreply.github.com>

gravity.sh

@@ -895,7 +895,7 @@ timeit(){
   elapsed_time=$((end_time - start_time))
 
   # Display the elapsed time
-  printf "  --> took %d.%03d seconds\n" $((elapsed_time / 1000)) $((elapsed_time % 1000))
+  printf "  %b--> took %d.%03d seconds%b\n" ${COL_BLUE} $((elapsed_time / 1000)) $((elapsed_time % 1000)) ${COL_NC}
 
   return $ret
 }