translate arabic python:
    al = "DejaVuSans.ttf"
    style.l_default.font = al
    style.l_default.size = 16
    style.l_button_text.selected_font = al
    style.l_button_text.selected_bold = True
    style.l_link_text.font = al
    style.l_alternate_text.font = al
    style.l_navigation_button_text.font = al
    style.l_navigation_text.font = al
    style.l_navigation_text.bold = True
    style.l_checkbox_text.selected_font = al
    style.l_nonbox_text.selected_font = al
    style.hyperlink_text.font = al
    make_style_backup()

    config.rtl = True
