Hey, I recently downloaded the Mac OS X Yosemite beta (it looks gorgeous!), and realised that the Adobe Creative Cloud folders are custom designed; problem is, the new OS has newly stylised folders, which haven't yet been updated by Adobe. Obviously, I wouldn't expect them to, as Yosemite is only a beta. For the time being though, I thought I would make a folder which looks exactly the same as the new ones-it wasn't easy, but it looks perfect if I do say so myself.
Once you have downloaded it, open it up in preview, press 'Cmd+A' and then 'Cmd+C' to copy it; navigate to the desired folder, right click and hit "Get Info" ('Cmd+I'). Then click on the small folder in the top left until there is a blue outline around it, then just simply press 'Cmd+V' and close that window.
You're done!