Launcher advanced customization

[psm-1]

I would like to remove the little shadow on the top of the launcher, between the dash and the title bar. On the folder /usr/share/unity/icons there is not an image for this. Compiz config settings manager and unity tweak tool don't seem to have this option. That's the only thing that remains for having a completely flat theme.

[Frogs Hair]

Moved to Desktop Environments