Create Android icon set with Microsoft Expression Design

Microsoft Expression Design is great for creating icons for all platforms.

To create an image for the Android Holo Dark theme, white color (#FFFFFF) should be used to draw the shape.  Since the artboard has a white background, one can use a dark or colored square as the background to draw the image, and hide the square when exporting the image. 

After exporting the design to a PNG file, in Eclipse

Right-click the project that the icon set will be created for.
New > Other... > Android > Android Icon Set
Select the type of icon to be created, enter the icon name, click Next
Select the "Image" tab, browse to the PNG file created by Expression Design, adjust padding until the icons in the right column look as desired, and click Finish. The preview may not be visible in the Holo Dark theme, so you can use the Holo Light theme for preview and choose Holo Dark when creating the icon set by clicking Finish.

The icons will be created in all appropriate drawable folders.