Rzi rz-navigation-item-icon-children icon change

Is there any way I can change the keyboard_arrow_down icon in the sidebar to arrow_forward and arrow_backward in my css and not in the base css? Thank you.

Not very convenient at the moment since the icon is hardcoded:

We will change it similar to accordion and you will be able to just set a CSS variables for expand/collapse icons:

Thank you for your quick response!