Spacer feature request - Add text label

I just added a seperator to my TLB toolbar (not a menu), and I can enable expand/collapse, though title and auto collapse don't seem to work. Seems like it'd be easier to add the functionality here than to the spacer plugin. In fact, It seems like the two could be integrated by allowing the option to specify a size and/or background for the seperators. On the other hand, adding the text/collapse/etc. functionality to the spacer plugin (ooh, with different images for the different mouse states, please), would keep TLB more modular and versatile.