Mid-Tier 6.3 Stylesheet

All, I am trying to change some of the colors on my Mid-Tier page. Does anyone know if their is a tag in the ARSystem stylesheet to change the background color? Does anyone know if their is a specific document that has been published by BMC that explains each tag in the stylesheet?

Mid-Tier 6.3 Stylesheet

Since I was not exactly clear; I want to change the background color of a form on the Mid-Tier without changing it in the User tool. Thanks * All, I am trying to change some of the colors on my Mid-Tier page. Does anyone know if their is a tag in the ARSystem