_x( 'Paint brush', 'Block style label.', 'additional-block-styles' ), 'blocks' => $blocks, ) ); Register::add_style( 'flower', array( 'label' => _x( 'Flower', 'Block style label.', 'additional-block-styles' ), 'blocks' => $blocks, ) ); Register::add_style( 'oval', array( 'label' => _x( 'Oval', 'Block style label.', 'additional-block-styles' ), 'blocks' => $blocks, ) ); Register::add_style( 'blob', array( 'label' => _x( 'Blob', 'Block style label.', 'additional-block-styles' ), 'blocks' => $blocks, ) ); Register::add_style( 'inset-shadow', array( 'label' => _x( 'Inner shadow', 'Block style label.', 'additional-block-styles' ), 'description' => _x( 'Not needed if block shadow options are supported.', 'Block style label.', 'additional-block-styles' ), 'blocks' => array( 'core/cover', ), ) ); $blocks = array( 'core/image', 'core/post-featured-image', ); Register::add_style( 'flip-horizontally', array( 'label' => _x( 'Flip horizontally', 'Block style label.', 'additional-block-styles' ), 'blocks' => $blocks, ) ); Register::add_style( 'flip-vertically', array( 'label' => _x( 'Flip vertically', 'Block style label.', 'additional-block-styles' ), 'blocks' => $blocks, ) );