Cinnamon nightly builds include Bumpmaps support. Now standard blur support could be also included. Blur could then be used to Windows borders, Cinnamon star menu and taskbar that could blur background behind it.It would be also nice to configure blur through Cinnamon Control Center. Example how heavy or light blur is and turn blur on or off.
Linking relevant issues. @7090 Can this be closed please as other defects seem to be active ones?
As anandrkris said this issue is not so active as others so I'm closing it.