- Download the icons (convenient link to the .tar.gz)
- Open the icon you wish to use in Preview.app
- Select all and copy (
cmd
+a
,cmd
+c
) - Select your folder in Finder
- Press
cmd
+i
to open the 'Info' window - Click the small icon at the top left of the window
- Paste the icon you copied earlier (
cmd
+v
)
- Github octocat from https://github.com/logos
- Git logo from http://git-scm.com/downloads/logos
- OS X Folder icons from Mac OS X