Scribe Theme – Blog Styling

I have the scribe starter theme and would like to modify the way the blog page displays the post entries. For example, currently the read more link shows up as an arrow and I would like to change that particular graphic to something else or take it away completely. Where can I modify this element. I cannot seem to find the graphic element for it on the upfront editor and when I go to the upfront builder to look for the the blog template I cannot find it.