Throughout the beta process Microsoft received a lot of feedback on how the taskbar and the window border changes to black when you maximize a window. Before the final release they altered the behavior slightly so the window and taskbar would still turn opaque and black, but with a very slight tint of color that matches the color of your glass. This change satisfied some users but left others still in the dark. Many users wanted a maximized window to remain transparent as well as the taskbar. Once the final build of Windows Vista shipped, all hope was gone that we would have transparent maximized windows, until today.