How to use upfront with direction RTL?

Hey there,

I am using Fixer and I was wondering what is the best way to change the direction to RTL and the text-align to right ( I am using Hebrew language).

I have tried changing the CSS from the "themes setting>add custom css rules" and add the direction:rtl; to the boby but it effcts all the page (including the upfront feathers) and after the functionalty of the upfront builder didn't work
I would appriciate to understand what is the best way to give this (and other upfront themes) a RTL rules so it fit to my websites.

thanks

Nir