Most probably the versions that appears after 5.0.3 will feature only the default color theme. Other color themes will be available as downloads from the vtiger.com website. This is planned to reduce the package size.
We will soon clean up the vtiger color theme CSS and post a “how-to” document to create color themes. Users can create their own color theme with the help of this document. If submitted to us, we will post the color themes in the downloadables section.
Already there is a quick guide sort of document in the Wiki to create vtiger CRM color themes.
– Radiant