I just included jQuery jScrollPane plugin in to my page and it seems to be working fine except one small issue. I want to decrease the size(height) of scrollBar tab (where we click to drag the scroll bar up and down). I have attached the current snapshot of it as you can see how long it is. On the example site, it shows up fine.
Src: http://jscrollpane.kelvinluck.com/themes/lozenge/
Note: I am talking about the Dark Colored Area on the snapshot.

If you want to reduce the size of the “drag” element there are some properties you can pass into the plugin to do so. Please see this example:
http://jscrollpane.kelvinluck.com/drag_size.html