We modified the partial/post-card.hbs file to get HTML rendering in post excerpts, so that we get image previews at the front page. We Changed <p>{{excerpt words="33"}}</p> to {{content words="42"}}.

OK. There are hiccups.

Added:

Is the front page more functional now or did we ruin the casper theme? Right now one gets to view a post only by clicking the title as opposed to clicking anywhere on the post-card. On the other hand, more tags are shown and clicking one leads to a page listing of posts with that tag. We made some minor changes to the CSS and compiled the files using gulp as pointed out here.