[Ayatana] Overlay-scrolbar in Dash

[Pierre-Olivier Megret <pomegret@xxxxxxxx>]

Hello Everybody

It's my first post here. So i hope you will excuse my english. 
unfortunately , I'm french indeed ;-) . I'm used to read yopu but not to 
write here.

I'm using Ubuntu since Hardy and I've 11.10 on my two Computers since 
Alpha1.

Does everyone know why dash doesn't use Overlay scrollbar? I think white 
scrollbar is too close from items  in current dash and consequently 
difficult to spot and use ?

Thanks !