Wireframe: My Custom WordPress Block Style Variations

my-custom-block-variations.php

<?php
/**
 * Plugin Name: My Custom Block Variations
 * Description: Adds custom block style variations to the WordPress block editor.
 * Author: Eric Karkovack
 * Author URI: https://speckyboy.com/
 * Version: 1.0.0
 * Requires at least: 6.6
 * Requires PHP: 7.4
 */

// Don't allow direct access to the plugin file.
defined('ABSPATH') || exit;

// Custom function to register block style variations.
function mcbv_register_block_styles() {
  
  // Add block style variations here. See: https://developer.wordpress.org/block-editor/reference-guides/block-api/block-styles/#server-side-registration-helper
  
}

// Initialize the custom function.
add_action( 'init', 'mcbv_register_block_styles' );