No it really doesn't. I've seen tons of Qt themes that break apps. Their theming system is similar to the design of GTK's, so it has most of the same problems.

No it really doesn't. I've seen tons of Qt themes that break apps. Their theming system is similar to the design of GTK's, so it has most of the same problems. This isn't a technical problem, it's entirely a social problem: users want these themes but the same users are also under the false impression that you can ever have this type of theme that won't also break apps. When that isn't technically possible and it never will be.