Theme Showcase: "Blog" subject doesn't have very useful previews

[blackjackkent]

Poking around the theme showcase from the perspective of someone trying to set up a blog, selecting a theme is a little frustrating if you do not need/want your site to have a homepage. Pretty much none of the themes that are earmarked as "Blog" as a subject have a preview that gives any indication of what an actual blog post or list of posts looks like in the theme. I'm not sure how automated the generation of these preview images is, but if it's curated, this might be a QoL improvement for people interested in that subject specifically for their site - perhaps the possibility of having multiple slideshowed previews rather than just one image?