Provided a colored background for target values.
When we measure, ultimately we want to compare these measure to a target value. Target values should be a color option in the background (similar to the speedometer gauge). The number of colors up to 3 (R,Y,G) should be driven on the number of ranges for the target value. Thus 100 to 95 (Green), 94 to 75 (Yellow) and 75 and below (Red) give us 3 colors for the background. There needs to be an option to direct the value as ascending or descending (i.e. up is good (Revenue) or up is bad (Revenue). This will provide a way to orient the background on the chart so Green could be up or down depending on the measurement.
This should be standard functionality on all charts.

Example: Scorecard Overview screen shot
http://www.balancedscorecard.org/Software/QuickScoreBSCSoftware/tabid/395/Default.aspx