Where are cc library items stored on Mac OSX

I made a mistake on my CC Libraries by deleting items that I didn't think I needed, not realizing the documents that had them would no longer be able to use them. I tried restoring them through the "Properties" pane per Adobe help, but that didn't work (And Adobe says "you MAY be able to restore them").

So wondering WHERE in Finder/MacOSX these are stored, so I could perhaps recover from my backup prior to the inadvertent deletion. Seems to be in "Temporary Items" but that folder is a mess, wondering if there are any more specifics.

Thanks!