What does this eclipse symbol mean?

i can't seem to find this symbol in the Eclipse documentation, and i'm no expert in using Eclipse.

Can anyone explain to me what it means?

The sym开发者_如何学Gobol: Eclipse symbol http://img85.imageshack.us/img85/4489/eclipsesymbol.png

It's the arrow that confuses me. Can it be a shared resource?

Thanks in advance!

It is a SVN decoration for an External Folder

Check Eclipse Preferences "Team" - "SVN" - "Label Decorations"

You can see a list of Decorations and their meanings