How to change your desktop icons on a Mac. ... It can be a .JPG, a .PNG, a .SVG — pretty much any image file. And it doesn't matter how big it is. Once you've found the new icon, copy it.

Mix things up on your desktop with some fun new icons. Web design blog Noupe has an awesome collection of the 50 most beautiful icon sets of 2008, ripe for you to pick from.

You can change the desktop background or icons, as well as the lock screen wallpaper, so your Mac truly feels like home. You can even add a custom message and a new avatar icon to your Mac ...

Keeping your desktop, files, and folders organized can be a bit of work, ... OS X folders, and individual icons in ICO, ICNS, and PNG format so you should have no trouble using them anywhere.