How to display html code in given php code?

Question

WooCommerce

Hello!
There is this code:

add_filter( 'woocommerce_product_single_add_to_cart_text', 'tb_woo_custom_cart_button_text' );
add_filter( 'woocommerce_product_add_to_cart_text', 'tb_woo_custom_cart_button_text' );   
function tb_woo_custom_cart_button_text() {
        return __( '+', 'woocommerce' );
}

It is in the catalog, in the product blocks, it replaces the text with a plus. I want to try to insert a picture, but if you write

add_filter( 'woocommerce_product_single_add_to_cart_text', 'tb_woo_custom_cart_button_text' );
add_filter( 'woocommerce_product_add_to_cart_text', 'tb_woo_custom_cart_button_text' );   
function tb_woo_custom_cart_button_text() {
        return __( '<img src="blabla">', 'woocommerce' );
}

Then it displays the text itself " <img src="blabla">", and not a picture, what should I do?

Thanks everyone for the replies

Answer 1

Redefine the button output template or insert a background through a pseudo-element. Filters personally did not work for me and Google did not help