Man, I have really neglected this thread. Need to come here more often.
As Coddiwompler alluded in his last post, there's a huge update coming very soon. I've been working on it for several months at this point, and as of last weekend have made the code for this update public on github and began collaborating with
@Cmdr Coddiwompler and
@MattG to get it across the finish line.
A number of features people have been asking about for a long time are going to be in there. Including, but not limited to, themes (dark, light, and user defined), sortable columns, a collapsible sidebar, the application having a progress bar for read all rather than just hard locking until its done, and more stuff besides!