GLWalker

<?php
/**
 * Gutenberg Block customization for this theme.
 */
// gutenberg disable for posts
//add_filter('use_block_editor_for_post', '__return_false', 10);

// gutenberg disable for post types
//add_filter('use_block_editor_for_post_type', '__return_false', 10);

GLWalker

<?php

function generate_css_from_theme_settings() {
	if ( !function_exists('wp_get_global_settings') ) {
		return new WP_Error('missing_function', 'wp_get_global_settings() is missing');
	}

	$colors = wp_get_global_settings();
	$colors = $colors['color']['palette']['theme'];