Get colors from a product's configurator data

get-configurator-colors.php

<?php

/**
 * Get the hex colors from a product's configurator data
 *
 * @param int $product_id
 * @return array
 */
function get_product_colors_from_configuration( $product_id ) {
	$colors = [];
	if ( mkl_pc_is_configurable( $product_id ) ) {
		$content = mkl_pc( 'db' )->get( 'content', $product_id );
		foreach( $content as $content_per_layer ) {
			$c = new MKL\PC\Choice( get_the_id(), 0, $content_per_layer['layerId'], 0, 1 );
			if ( 'colors' == $c->get_layer( 'display_mode' ) ) {
				foreach( $content_per_layer['choices'] as $choice ) {
					if ( isset( $choice['color'] ) ) $colors[] = $choice['color'];
				};
			}
		}
	}
	return $colors;
}