Good Gear Guide
In Pictures: Windows 8 app shootout - ModernMix v ...
User interface of the re-sizeable windows
ModernMix applies the standard Windows title bar to each app, where the familiar three function buttons (Minimize, Maximize/Restore Down, and Close) are set on the upper-right. RetroUI Pro only provides a Close button on the title bar of the window within which a Windows app is running.
In Pictures: Windows 8 app shootout - ModernMix v RetroUI Pro