[Mr. X]

I think I saw somewhere that you can use CSS for the effect, but not really sure.

I do with with a backround image like in the above post suggests.

#xxxxxx" background="{ imagesfolder }/image.gif

Put that in the Styles section of AdminCP, for where you want it, i.e. Catagories or Table Headers etc. Replace #xxxxxx with a hex color. Remove the spaces from { imagesfolder }.

I made a 4px wide, 40px tall image in Photoshop for my bars, then uploaded to my images dir. { imagesfolder } points to wherever you've defined your images path in the Style section btw.