This tutorial is for an outdated version of Google Chrome. Please refer to the updated version (01/30/12)
A standard Windows Save As dialog should now be displayed, overlaying your main browser window. Select a location in which you would like to save your new theme file. Next, click on the button labeled Save.
In the example above, I have selected a new folder created on my desktop called chrome themes. Please note that this downloaded file will be removed from your hard drive as soon as the theme is successfully installed, making this download location somewhat irrelevant.