WordPress Theme Tag

As part of my web design process with new clients, I regularly ask them to show me websites that they've recently seen online that they like the visual look and feel of. I often get a list of websites back from them with a detailed response of what aspects they liked most - how the navigation is laid out, whether there is a large slider on the homepage,  footer layout, color scheme, etc. To follow up, I often want to know if the websites were built with WordPress and sometimes it's helpful to identify what WordPress theme being used. I know this...