X-Ray style Quick Look folder preview

This command can be performd in Mac OS X Snow Leopard (10.6) and Lion (10.7) to get folders in Quick Look preview to show up with transparent covers. This option gives you an “x-ray” style view of the icons inside a folder.

defaults write com.apple.finder QLEnableXRayFolders -bool true

To make the command take effect, you will need to restart the Finder

killall Finder

Revert to the default setting:

defaults delete com.apple.finder

Restart Finder


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