Gets the file that section was parsed from. If no such file exists, for example because the CSS was loaded via gtk_css_provider_load_from_data(), then NULL is returned.
the GFile that section was parsed from or NULL if section was parsed from other data
3.2
Gets the file that section was parsed from. If no such file exists, for example because the CSS was loaded via gtk_css_provider_load_from_data(), then NULL is returned.