Microsoft doesn't officially allow theming the rest of the OS. There is an app called
UxStyle which unlocks the theming ability, then you can install custom visual styles/themes made by the Windows community from sites like deviantart.com. Maybe you will find a similar visual style/theme as "Full Glass" on devianart.com. Install
UxStyle first and then find and apply the theme from DA.
Also the theme you install must match the exact version of the Windows version it was made for. Meaning Windows 7 visual styles won't work with Windows 8 and vice versa.
Disclaimer: Classic Shell is not responsible for anything that happens to your PC from installing third party apps.