June updates: Features backported to all PRSS themes

As promised in the June roadmap, the newer theme features are now in every PRSS theme:

• Gallery mode, so a large image opens zoomed when clicked.
• A single combined stylesheet per theme, which is both faster to load and easier to fork.
• Bug fixes and parity adjustments across the set.

If you use the official themes, the updates arrive on your next publish. Preview first if you want to see them land.

That closes out the June plan. Feedback is always welcome through About & Help inside PRSS.