This tutorial is for an outdated version of Google Chrome. Please refer to the updated version (05/31/12)
It is likely that you will not want to keep the randomly generated username and icon that Chrome has chosen for you. In the example above, Google has chosen the name Pickles for my new user. While I certainly enjoy a half-sour with my lunch, I can come up with a better name for myself.
To modify the name and icon, first return to the Personal Stuff Options page by following steps 2 and 3 of this tutorial. Next, highlight the username that you wish to edit by clicking on it. Once selected, click on the Edit… button.