Sure, do you mean at the bottom of each entry?

ul.entry-management-links {
padding: 1em;
background-color: #E3E3E3;
background-image: url(http://spoonybard.org/dwidth/central/lighttitle.gif);
margin: 0;
}

You can change it to any deeper grey that you want, but the background-image might look a bit off. You can just delete the background-image line, though, if you run into that problem!