Color e Dimension of close symbol

Good evening everyone,
I tried to look for a solution in the previous posts but I did not find anything.
I need to know how to change the X symbol for closing the navigation menu.
I don’t ask for much, I am enlarging it and changing color through the special custom bric (special-navigation-close-symbol)

Thanks to whoever answers me

Hi @cristian.

Do you mean changing the symbol to something else other than an X

also, or enlarge it and change the color of the symbol