It would be possible to make the layout like Palabre, with tabs in the top with the categories?
Is very user friendly to go from one category to another, is fast, and most people prefer to review the RSS as categories because all the news are in the same context so are easiest to digest.
This layout saves “clicks” and time.
A quick button to mark all as read would be nice as well, palabre and others has a floating button that appears at the bottom when you arrive at the last article in the rss feed.
BTW excellent app, I just paid for it.