The Definition of Blight

Are they called rust because they literally make the leaves look rusty, like the plant looks like it has rust on it? I think that is probably where it came from. But you know, the rust in the pine trees, it's actually a gorgeous brilliant orange that is on the leaves leaves. When you see those rabies, they're just, they're brilliant orange with the rust fungus. And there was a whole story about the red god or something or robygus. There's a story about it. So yeah. Why not? I mean, seriously, why not?