btw Daniel, did you notice you can now add hover and pressed images for the response icons?
No, as a matter of fact, I usually become aware of new features by reading the version history (or the "what's new") but it wasn't mentioned over there. I ran to the new documentation, however, as soon as I read your post and there it was! Haven't tested it yet but it seems great. Small touches like these are what's making a professional engine even more professional. Great!
I'll add the right name in the next release, so that both of them work (for backward compatibility).
Keeping backward compatibility with an undocumented bug seems kind of excessive to me. I mean, since the currently working method is not documented, no one will be using it. In fact, as you said yourself, I seem to be the only one working with this kind of responses window manipulation. All that everyone should know is that the documented method doesn't work because of a known bug that will be fixed in the next release. That's it. Why clutter your code with that? But, of course, it's only my opinion. It's your code and your decision after all.