I've fixed bugs in the new UI windows (Planet, System, and Fleet), fleshed out the missing features (except for the special buttons, still awaiting artwork for that), and made it so that you can't select other players' ships (you can hover over them for info, but can't select them as if you're about to issue movement commands).
I also added a check for each turn that ensures that your food production and pollution cleanup are at their optimal output (all pollution cleaned up if possible, then enough to feed your people). However, if you've locked the food or pollution sliders, they won't be touched. Other sliders, if locked, won't budge as well.
I'm feeling good about having the galaxy screen done. There's still some missing features, but they require other stuff to be implemented before I can add them.
Next up is the planet list screen where you can manage your planets. Still thinking about how to display the stargate info...