Replace PayPal Logo in WooCommerce

If you use PayPal as a payment option on the WooCommerce checkout page, you can replace the PayPal logo displayed there. Add the following code to your theme’s functions.php file:

/**
 * Add custom gateway icons
 *
 * @param string $icon Image HTML.
 * @param string $gateway_id Gateway ID.
 *
 * @return string
 */
function sv_custom_wc_gateway_icons($icon, $gateway_id)
{
    // Example for PayPal:
    if ('paypal' == $gateway_id) {
        $icon = '<img src="' . get_stylesheet_directory_uri() . '/images/paypal.svg" alt="' . __('PayPal') . '" />';
    }
    return $icon;
}

add_filter('woocommerce_gateway_icon', 'sv_custom_wc_gateway_icons', 10, 2);

Change the path and filename to your new image and you are set!