Try to add the following PHP code snippet to the child theme functions.php file to do this

function woodmart_swatches_list( $attribute_name = false ) {
	global $product;

	$id = $product->get_id();

	if( empty( $id ) || ! $product->is_type( 'variable' ) ) return false;
	
	if( ! $attribute_name ) {
		$attribute_name = woodmart_grid_swatches_attribute();
	}
	
	if( empty( $attribute_name ) ) return false;

	$available_variations = $product->get_available_variations();

	if( empty( $available_variations ) ) return false;

	$swatches_to_show = woodmart_get_option_variations(  $attribute_name, $available_variations, false, $id );

	if( empty( $swatches_to_show ) ) return false;
	$out = '';

	$out .=  '<div class="swatches-on-grid">';

	$swatch_size = woodmart_wc_get_attribute_term( $attribute_name, 'swatch_size' );

	if( apply_filters( 'woodmart_swatches_on_grid_right_order', true ) ) {
		$terms = wc_get_product_terms( $product->get_id(), $attribute_name, array( 'fields' => 'slugs' ) );

		$swatches_to_show_tmp = $swatches_to_show;

		$swatches_to_show = array();

		foreach ($terms as $id => $slug) {
			//Fixed php notice
			if ( ! isset( $swatches_to_show_tmp[$slug] ) ) continue;
			$swatches_to_show[$slug] = $swatches_to_show_tmp[$slug];
		}
	}

	foreach ($swatches_to_show as $key => $swatch) {
		$style = $class = '';

		if( ! empty( $swatch['color'] )) {
			$style = 'background-color:' .  $swatch['color'];
		} else if( ! empty( $swatch['image'] ) ) {
			$style = 'background-image: url(' . $swatch['image'] . ')';
		} else if( ! empty( $swatch['not_dropdown'] ) ) {
			$class .= 'swatch-text-only ';
		}

		$style .= ';';

		$data = '';

		if( isset( $swatch['image_src'] ) ) {
			$class .= 'swatch-has-image';
			$data .= 'data-image-src="' . $swatch['image_src'] . '"';
			$data .= ' data-image-srcset="' . $swatch['image_srcset'] . '"';
			$data .= ' data-image-sizes="' . $swatch['image_sizes'] . '"';
			if( woodmart_get_opt( 'swatches_use_variation_images' ) ) {
				$thumb = wp_get_attachment_image_src( get_post_thumbnail_id( $swatch['variation_id'] ), 'woocommerce_thumbnail');
				if ( !empty( $thumb ) ) {
					$style = 'background-image: url(' . $thumb[0] . ')';
					$class .= ' variation-image-used';
				}
			}

			if( ! $swatch['is_in_stock'] ) {
				$class .= ' variation-out-of-stock';
			}
		}

		$class .= ' swatch-size-' . $swatch_size;

		$term = get_term_by( 'slug', $key, $attribute_name );

		$out .=  '<div class="swatch-on-grid woodmart-tooltip ' . esc_attr( $class ) . '" style="' . esc_attr( $style ) .'" ' . $data . '>' . $term->name . '</div>';
	}

	$out .=  '</div>';

	return $out;

}