WordPress Version: 6.5
/**
* Registers a new block style.
*
* @since 5.3.0
*
* @link https://developer.wordpress.org/block-editor/reference-guides/block-api/block-styles/
*
* @param string $block_name Block type name including namespace.
* @param array $style_properties Array containing the properties of the style name, label,
* style_handle (name of the stylesheet to be enqueued),
* inline_style (string containing the CSS to be added).
* See WP_Block_Styles_Registry::register().
* @return bool True if the block style was registered with success and false otherwise.
*/
function register_block_style($block_name, $style_properties)
{
return WP_Block_Styles_Registry::get_instance()->register($block_name, $style_properties);
}