hi Michael,
I have been working a bit with the new beta.

It would be nice if the styles menu would not be so modal.
Right now if I want to change a style color I have to:
-pick an object with that style
-in the attributes tab, go on the style,
-choose to modify the style
-go to edit
-change the color.

I think it would be better if you could double click on the style name to change its name, or on the colour to change its colour.
Also, it would be better if you could move styles up and down in their hierarchy without having to go in the pop-up menu.

Another approach would be to right-click on a style and get a menu for it, including:
-delete style
-edit style
-move up
-move down.
This would be even better if we could multi select several styles at once.