Sometimes designers forget to name their layers and hand them off via the design spec sheet. It would be nice to be able to see a preview of the graphic on the specs sidebar when you click it on the artboard.

For example I click an image on the artboard, and the spec sidebar it tells me that i've clicked on Group 114, but I'm not exactly sure if it's the graphic that I need because it's a grouped layer. I know I can right click to view layers, but it would just a be a whole lot more convenient to see a preview of what Group 114 exactly so I can download with confidence.