Windows Flip improvements: Windows Flip ( Alt+Tab) in Windows Vista now shows a live preview of each open window instead of the application icons.Aero Glass theme: The main component of Aero, it is the successor of Windows XP's 'Luna' and changes the look and feel of graphical control elements, including but not limited to buttons, checkboxes, radio buttons, menus, progress bars and default Windows icons.Windows Aero incorporated the following features in Windows Vista. Build 5270 (released in December 2005) contained an implementation of the Aero theme which was virtually complete, according to sources at Microsoft, though a number of stylistic changes were introduced between then and the operating system's release. The first build with full-featured Aero was build 5219.

Microsoft started using the Aero theme in public builds in build 5048. Previous user interfaces were Plex, which was featured in Longhorn builds 3683–4042 Slate, which was first featured in the Lab06 compile of build 4042 and was used until the development reset, and Jade (builds 4074 to 4094). Until the release of Windows Vista Beta 1 in July 2005, little had been shown of Aero in public or leaked builds.

The Aero interface was unveiled for Windows Vista as a complete redesign of the Windows interface, replacing Windows XP's ' Luna' theme.

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