CD Theme and Titlebar

Hi there,

I love the default title bar of CD (slim title bar, even the close/minimise/maximise buttons are small). But whenever I use another theme (whether from the Chrome Store or created by myself) the title bar changes to the default title bar of Windows.

How can I change the color theme without changing the look of the title bar?

Also, is there any transparent theme that can enable transparency without enabling Windows Aero?