I always wanted more options for the subtabs in DS (at least border options). I finally got around to playing around with mine and figured I'd share.

This is what my subtabs looked like before (boring):

Here's some tweaks to give your subtabs some borders, background images and sliding animation (text file). Add it to your Advanced / Custom CSS.

End result:

Use what you want out of it. I suggest you use a small pic & optimize it to keep the size down for response times.

Have fun!