Windows Server 2012 RTM Enables New Theme

From the recent exposure of the new Windows 8 UI theme, Microsoft is planning to completely abandon the Aero Glass interface and start to enable the Metro UI, which means that there will be no more shadows and transparency effects in the future. With a gradient effect, the taskbar no longer has a glass, transparency or blur effect.
And the Windows 8 Pre RTM Metro UI screenshot just revealed proves this. Now Winunleaked.info is once again exposed to the new theme of Windows Server 2012 RTM. The following is a screenshot of the theme of Windows Server 2012 Datacenter Pre-RTM version, but The AeroLite effect is still the default:

Here is a screenshot of the Metro UI for Windows 8 Pre RTM: