%s', powerkit_get_page_slug( $this->slug ), esc_html__( 'Justified Gallery', 'powerkit' ) ), array( $this, 'powerkit_justified_gallery_settings_callback' ), 'media' ); add_settings_field( 'powerkit_justified_gallery_margins', esc_html__( 'Space between images', 'powerkit' ), array( $this, 'powerkit_justified_gallery_margins_callback' ), 'media', 'powerkit_justified_gallery_settings' ); add_settings_field( 'powerkit_justified_gallery_row_height', esc_html__( 'Row height', 'powerkit' ), array( $this, 'powerkit_justified_gallery_row_height_callback' ), 'media', 'powerkit_justified_gallery_settings' ); add_settings_field( 'powerkit_justified_gallery_max_row_height', esc_html__( 'Max row height', 'powerkit' ), array( $this, 'powerkit_justified_gallery_max_row_height_callback' ), 'media', 'powerkit_justified_gallery_settings' ); add_settings_field( 'powerkit_justified_gallery_last_row', esc_html__( 'Last row', 'powerkit' ), array( $this, 'powerkit_justified_gallery_last_row_callback' ), 'media', 'powerkit_justified_gallery_settings' ); register_setting( 'media', 'powerkit_justified_gallery_margins' ); register_setting( 'media', 'powerkit_justified_gallery_row_height' ); register_setting( 'media', 'powerkit_justified_gallery_max_row_height' ); register_setting( 'media', 'powerkit_justified_gallery_last_row' ); } /** * Section Description. * * @since 1.0.0 */ public function powerkit_justified_gallery_settings_callback() { return null; } /** * Field | Space between images. * * @since 1.0.0 */ public function powerkit_justified_gallery_margins_callback() { ?>