Feature Request: SSL Code Input, Other Icons

Great plugin/widget. It could be killer if there was a input field (or fields) for SSL, TRUSTe, Google Trusted Stores, etc., and I was surprised that existing icons are not .png transparent.

Do you think this is a reasonable feature to implement?

Thanks.

http://ww.wp.xz.cn/extend/plugins/woocommerce-accepted-payment-methods/