Dark Glass ObjectDock designed by half-left http://half-left.deviantart.com/

Instructions:

Unzip and copy to C:\Program Files\Stardock\ObjectDockFree\Backgrounds\Zoomers

Copy the Dark Glass Indicator to C:\Program Files\Stardock\ObjectDockFree\Running Indicators

Select the theme in the ObjectDock settings(click the image of the dock>Change the background) and then select 'Running' Indicators>Choose running indicator and select Dark Glass Indicator. Set the "Distance from edge of the indicator to -18px.
