Tweak Quick Look to See What Files Are Inside a Folder
At first I thought this might be very gimmicky, like many of the OS X window manager tweaks that are out there in the wild. This one I however found very useful. I’ll state up front that if you don’t often use quicklook, then feel free to ignore the rest of this article.
So what does X-ray mode do for Quick Look?
Instead of just seeing the regular folder icon in Quick Look, the folder icon will be semi-transparent, with previews of the folder’s contents visible in the Quick Look window. What’s more, the preview images will rotate automatically, moving through each item in the folder.
You can enable X-ray mode for Quick Look in a couple of ways, but the quickest and simplest way to do it is to simply turn on X-ray mode with a simple Terminal hack.
Fire up Terminal (
/Applications/Utilities/Terminal.app) and paste the following:
Hit Return, then Alt+right-click on the Finder icon in your Dock and click on Relaunch. X-ray mode should now be enabled. Hit the spacebar when you’ve selected any folder in Finder to test it.