This question already has an answer here:
I'm using Dropbox and replacing some of the standard user folders like Documents and Pictures with symlinks to locations in my Dropbox. I can easily set the icons of these symlinks to match the icons of the standard Documents and Pictures folders, but I can't find a way to also change the symlinks' appearance on the Finder sidebar to look like the native Documents and Pictures folders.
In short, I've placed custom folders in the Finder sidebar; is there a way to change the icons they're given?
I've looked into Candybar, but it seems like that's mostly for changing the appearance of all appearances of the standard icons, whereas I just want to make a plain and ordinary folder look like a standard user folder.