service = $service; } public function append_to( Post_CSS $post_css ) { if ( ! Plugin::$instance->kits_manager->is_kit( $post_css->get_post_id() ) ) { return; } $list_of_variables = $this->service->get_variables_list(); foreach ( $list_of_variables as $variable ) { if ( Font_Variable_Prop_Type::get_key() !== $variable['type'] ) { continue; } $font_family = sanitize_text_field( $variable['value'] ?? '' ); if ( empty( $font_family ) ) { continue; } $post_css->add_font( $font_family ); } return $this; } }