Gist for my article: WordPress: Add custom logo support to your theme. https://vanaf1979.nl/wordpress-add-custom-logo-support-to-your-theme/

custom-logo-hook-more-control.php

<?php
function config_custom_logo() {
        
    $defaults = array(
        'height' => 200,
        'width' => 200,
        'flex-height' => true,
        'flex-width' => true,
        'header-text' => array(),
    );

    add_theme_support( 'custom-logo' , $defaults );

}

add_action( 'after_setup_theme' , 'config_custom_logo' );
?>