Adding Roboto Font to Form Builder

I am trying to get the look and feel for an embedded form the same as the existing website. It uses Google's Roboto font.

I have managed to insert Roboto font into the Form using javascript (via code Editor) and I can change the font in an HTML component.

However I notice I can't change other elements to this font such as a field object label.

Is there a way to do this?Thanks