To also change the enlarged start menu and the taskmanager. Those are reg tweaks..
HKLM\Software\HTC\EnlargeMenu
edit ManiliaCustomHlDown and ManilaCustomHlUp (you can vary the color degree to give it a gradient look by using two slightly off colors)
For the taskmanager edit
HKCU\Software\HTC\TaskManager
same two keys
Use this website and use the "access code" numbers rather than hex/decimal and you'll have the exact colors without error.
http://cloford.com/resources/colours/namedcol.htm