Panel is a combination of grey and green colour based for the lucido style in AWN.
Panel colours are originally ment for Mint version of ClearLooks Revamp theme.
I suggest to use Mint-X icons. Icons, as well as Mint theme, can be download from here: http://www.omgubuntu.co.uk/2010/10/install-linux-mint-x-theme-ubuntu/
How to install it:
Firstly, go to "Dock preferences" (right click on AWN panel), then in the option "Style"(under preferences) choose "Lucido".
Now go to Themes and click install. Choose the package and then select the theme. That's it.
For manipulating the panel, you have to use "Separator" applets in the "Applet" tab to get the desired effects.
I hope you will enjoy it. It is my first posted product here in eyecandy :)