Windows 7: Hailing from the camp of "software that does exactly what its name implies", Windows 7 Taskbar Thumbnail Customizer fine-tunes the size, spacing and margins of your Windows 7 Superbar icons.
If you're unhappy with the size and spacing of application and folder thumbnails on your Superbar (less enthusiastically dubbed the taskbar in some circles), Windows 7 Taskbar Thumbnail Customizer adjusts them. Vertical size, spacing between the icons, and margins on the top and bottom of the icons are among the parameters awaiting your obsessive attention.
Don't worry about remembering your initial settings — if you're not happy with your Superbar's new look, hit "Restore Defaults" and everything will return to its default. Have another application or trick for customising your Windows interface? Let's hear about it in the comments. Thanks Saudrapsmann!
7 Taskbar Thumbnail Customizer [Deviant Art]