How to set the colors in difference charts

Hello,
 
I want to create a difference chart where negative differences can also be displayed like the lower graph in this picture from the documentation:
 
<img src="http://www.eclipse.org/birt/phoenix/charting/images/difference1.png" alt="difference1.png">
 
I can display the curve, however I cannot find how to set positive and negative color. The only color that is displayed is the first of the series palette (for both positive and negative differences).
 
PS: I'm using birt 4.4.2

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pricher

Hi,
 
You need to set the Positive and Negative color in the Series Palette.
 
In the Chart Builder, go to Format Chart --> Series --> Series Palette. Click on the first Series in Series Palette and choose Positive/Negative, as shown here:

rapa

pricher,
 
Thank you! That was the button I was looking for. Don't know why I missed it until now.