[Inkscape-devel] Objects/Layers/Sets dialogs

I've got a few questions about the Objects, Layers, and Sets dialogs:

* Does the Layers dialog have any functionality that isn't supported by the Objects dialog?

* Can the Layers dialog be removed (or merged with Objects dialog)?

* Does anybody understand why the Objects dialog slows down Inkscape (bug 1431274)?

* What is the purpose of the "domino" like icon in the Objects dialog? Is it just to open the color dialog? Is there an easy way to close the color dialog once open? Is it really useful to be able to open the color dialog from this dialog?

* In the Sets dialog, what is the purpose of "Items"? It seems like an unnecessary layer between the set name and the objects in the set.

Thanks,

Tav