Mostrar colores disponibles en pagina de categorias en Woo

mostrar-colores-disponibles.php

/**
 * @snippet       Añadir atributos de producto en las paginas de categorias (ocultando los atributos de variaciones fuera de stock)
 * @author        https://fsxperts.com/how-to-show-product-attributes-on-category-page/
 * @author        https://stackoverflow.com/questions/30855309/how-to-check-product-have-variation-in-woocommerce
 */
add_action('woocommerce_before_shop_loop_item_title','mostrar_atributos_disponibles');


/* @visual_hook_guide: https://www.businessbloomer.com/woocommerce-visual-hook-guide-archiveshopcat-page/*/

/**
 * @snippet       // Add product attributes in summary (single product page). Entre el precio y descripcion corta
 * @author        https://stackoverflow.com/questions/13374883/get-custom-product-attributes-in-woocommerce
 */
//add_action( 'woocommerce_single_product_summary', 'mostrar_atributos_disponibles', 15 ); 


function mostrar_atributos_disponibles() 
{
    global $product;
    
    $product_attributes = array( 'pa_color');
    //$attr_output = array();

    //Colores
    $color_rosa = 'pa_color';
	$color_teddy = 'pa_color-teddy';
	
	$array_colores = [];
	$array_colores_teddy = [];

	// Loop through available variation Ids for the variable product
	foreach( $product->get_children() as $child_id ) 
	{
		$variation = wc_get_product( $child_id ); // Get the WC_Product_Variation object
		
		if( $variation->variation_is_visible() && $variation->is_purchasable() && $variation->is_visible() ) 
		{
			$term_name_rosa = $variation->get_attribute( $color_rosa );
			$array_colores[$term_name_rosa] = $term_name_rosa;
			
			$term_name_teddy = $variation->get_attribute( $color_teddy );
			$array_colores_teddy[$term_name_teddy] = $term_name_teddy;
		}
	}
	
	if( !empty( $array_colores[$term_name_rosa] ) ) 
	{   
		echo '<div class="attribute-color">' . count($array_colores) .' colores</div>';
	}
	
	if( !empty( $array_colores_teddy[$term_name_teddy] ) ) 
	{   
		echo '<span class="attribute-color">' . count($array_colores_teddy) .' colores</span>';
	}
	
}