Filter: wr_form_field_filter_settings | Wonderful Relations

Filter: wr_form_field_settings

Option in Field must be set: filter_form_field_settings = true

Allows you to filter the form field settings, identifier must be set

Example: Add fonts to pdf builder

add_action( 'wr_form_field_settings', array( $this, 'my_form_field_setting' ), 10, 2 );

public function my_form_field_setting( array $settings, Form $form ): array {
	if ( $settings["identifier"] === "identifier" ) {
		 // Do Changes
	}

	return $settings;
}