Skins

Skins allow you to customize your applications with any graphics and change whenever you like. Each skin is very small and therefore quick to download. Some skins can be viewed, others you must right-click on the link first (rather than just left-clicking on the link) and "Save Link As" to download it.

Hotbar Skins

Source: http://www.hotbar.com RealPlayer Skins Winamp Skins