Most of us have been enjoying custom themes in Gmail ever since they launched last November, but now the real designers among us can manually customise the look and feel of Gmail to our personal tastes. Just fire up Gmail, head to Settings -> Themes, and click on the new Choose your own colours option at the bottom of the themes gallery. You'll be welcomed with a new popup window from which you can customise the colour of every last aspect of your inbox, from the colour of text (and link text) to the chrome of your labels box and highlighting colours. It's pretty simple, so you should get the gist pretty quickly. Thanks Jason!