@leocg I think I'm getting confused by the labels here.
I thought a folder on my speed dial was called a 'workspace' but its not.
My request only relates to the folders in speed dial. They currently are made from screen shots of a few speed-dials within and they have no options for customising their look like the individual links do.
My current workspace has about 300 individual links of which 280 are kept in groups of similar areas. The individual links are easy to find, I can colour them, select different images etc, but the folders are quite similar in appearance, and at first glance, hard to tell one apart from another. If I could customise their appearance I could tell straight away which group is for Piano, or Web design, or Building etc.
As I said, this is pretty much the same options you already have for selecting how an individual link appears on your speed dial.
If you need another picture to explain more clearly what I mean, let me know.