Alright, last changes:
http://img137.imageshack.us/img137/5961/lpenc7.png
1. I've added a few divider lines.
2. To save space, I've replaced Smooth with S ("Smooth" appears on mouse-over)
3. As a (bad) artist wannabe, I'd rather have the "shapes" functionality before the stroke and markers style, but let's be honest, it makes more sense to have the stroke and markers style (which are base functionalities) before the fancy shape effects...
4. I've also added an explanation of "Width" behaviour: it is not the width of "stroke" but the width of the total shape, whether it is a line or an LPE shape.
Think of it this way: in "none" mode and in "presets" mode, you're drawing lines most of the time, and most people probably expect width to behave in a same way whether the line is simple or complex.
Clipboard items just retain their properties save for scaling. No reason for a copied red heart to suddenly turn black. For Pattern along Path in 0.46, the pasted shape takes on the properties of the path instead of retaining its own. I'm not sure if 0.47 has a mode that allows you to keep the original object's style, but if it doesn't then this mode should be added.
Anyway, if I don't receive any additional comments for revisions, this is the version I'll submit for Blueprints tomorrow, along with some comments. Any additional changes can then made from there.