i dont have an option of selecting "Edit Folder." I was trying to change a folder pic of an app i downloaded. U guys will prob think its silly but I downloaded a phonebook app and wanted to change the icon to the original contact folder pic...
I think you could be out of luck. You can create a theme with Plazmic (or download one someone else has created) which will replace icons for system apps, but I don't think you can do anything with the icons for third party apps.