Universal FS Icons

I've always been bothered by the brightly coloured icons which represent folders/directories in modern Operating Systems.
The reason being that as soon as I change my system's visual style or theme, I have to change all folder icons that I've painstakingly customized to fit the new theme.

So I created these, very basic, very simplistic Universal FS (File System) icons.
The idea is that you could use these icons on any system configuration and they'll match the theme of the environment.

They're free for personal use, and not for commercial use.

[Update 20090311]
Feel free to link to this deviation page
but please do not re-host this deviation on your (or any other) website,
or use a direct link to the file hosted on deviantart.