David Lean created a great four part blog post series on using conditional formatting and color scales in Reporting Services (applicable to both, RS 2005 and RS 2008):
- Part 1: Conditional Color: The Basics. Report Expressions & Custom Code
- Part 2: Creating Color Ranges and Shades in Tables and Charts
- Part 3: Continuous Color Functions
- Part 4: Effectively Using Color for Charts and Multi-Dimensional Analysis
