Thanks, Illauna. But I'm afraid this is not particularly helpful, for reasons I think are pretty obvious. "Class" is fairly meaningless, as you are well aware. What's the tech rating? What's the wealth rating? What special resources does it have? The planet tab is fine, but it's just "here's all the core planets" and "here's all the uncolonized planets". Yes, you can get there from here, but again WHY. It was MUCH easier to see before.
Re: pink planets: some precursor planets look almost like extreme planets, and I don't *think* you can discern extreme from exotic with just your eyeballs.
Also, I don't see that it tracks dead worlds, and it's odd that it would do that anyway, unless there's going to be more that can be done with these (as opposed to nothing unless you get that artifact that converts one to a class 5).
Anyway, clearly nobody cares about this except me. So whatever.